# Shadcn Combo Chart

> Free shadcn/ui combo chart for React — built on Recharts ComposedChart and themed with CSS variables. Bar + line, dual-axis, area + bars, stacked + line, and a target reference line, plus loading, empty, and accessible states.

Source: https://designrevision.com/components/combo-chart

The **Shadcn Combo Chart** is a <a href="https://recharts.org/" rel="nofollow">Recharts</a> `ComposedChart` wrapped in the shadcn `ChartContainer` — themed with your `--chart` CSS variables and dark-mode-ready. It overlays **bars, lines, and areas** on the same canvas, the pattern for two correlated metrics — **volume bars with a rate line**, totals with an average, actuals against a target. Below: bar + line, dual-axis, area + bars, stacked + line, and a target reference line, plus the production states.

## The basic combo chart

`ComposedChart` lets you mix series types. Render the bars first, then the line on top:

```tsx
const chartConfig = {
  revenue: { label: "Revenue", color: "var(--chart-1)" },
  orders: { label: "Orders", color: "var(--chart-2)" },
} satisfies ChartConfig

<ChartContainer config={chartConfig}>
  <ComposedChart data={chartData}>
    <CartesianGrid vertical={false} />
    <XAxis dataKey="month" tickLine={false} axisLine={false} />
    <YAxis tickLine={false} axisLine={false} />
    <ChartTooltip cursor={false} content={<ChartTooltipContent />} />
    <ChartLegend content={<ChartLegendContent />} />
    <Bar dataKey="revenue" fill="var(--color-revenue)" radius={4} />
    <Line dataKey="orders" type="monotone" stroke="var(--color-orders)" strokeWidth={2} dot={false} />
  </ComposedChart>
</ChartContainer>
```

Series draw in **render order** — Bar before Line so the line sits on top.

## Dual axis

For two different scales (dollars vs. percent), add a second Y axis and point each series at one:

```tsx
<YAxis yAxisId="left" />
<YAxis yAxisId="right" orientation="right" />
<Bar  yAxisId="left"  dataKey="revenue" fill="var(--color-revenue)" />
<Line yAxisId="right" dataKey="conversion" stroke="var(--color-conversion)" />
```

## Area, stacking & targets

- **Area + bars** — render an `<Area>` (with a gradient) before the `<Bar>` for a trend behind the columns.
- **Stacked + line** — give bars a shared `stackId`, then overlay a `<Line>` for a total or average.
- **Target line** — drop a `<ReferenceLine y={250} strokeDasharray="4 4" />` for a target or threshold marker.

## Production states

Loading (skeleton bars), empty (icon + message), and accessible (`role`/`aria-label` + a data table of both series) variants are included.

See **[Shadcn Charts](/components/chart)** for the theming system, dark mode, and the standalone chart types.

## Installation

### chart

**Install:**

```bash
npx shadcn@latest add @designrevision/chart
```

**Dependencies:** recharts, utils, card

**Props**

| Prop | Type | Default | Description |
| --- | --- | --- | --- |
| config * | ChartConfig | — | Maps each data key to { label, icon?, color }. Colors become --color-<key> CSS vars. |
| children * | React.ReactElement (a Recharts chart) | — | A single Recharts chart (BarChart, LineChart, …) — ChartContainer wraps it in a ResponsiveContainer. |

`*` required.

**Usage & accessibility:** A Recharts wrapper themed with CSS variables. Pass a `config` (ChartConfig: each data key → { label, icon?, color }) to <ChartContainer>; it injects --color-<key> vars (scoped per light/dark theme) that your Recharts series reference as fill="var(--color-desktop)". Use <ChartTooltip content={<ChartTooltipContent />}> and <ChartLegend content={<ChartLegendContent />}> for themed tooltips/legends. Colors default to the --chart-1..5 tokens, which re-theme automatically in dark mode. The container needs a height — keep aspect-video / min-h-* or ResponsiveContainer measures 0. This is the base primitive; the Bar/Line/Area/Pie/Radar/Radial chart pages compose it.

```tsx
// components/ui/chart.tsx
"use client"

import * as React from "react"
import * as RechartsPrimitive from "recharts"

import { cn } from "@/lib/utils"

// Format: { THEME_NAME: CSS_SELECTOR }
const THEMES = { light: "", dark: ".dark" } as const

export type ChartConfig = {
  [k in string]: {
    label?: React.ReactNode
    icon?: React.ComponentType
  } & (
    | { color?: string; theme?: never }
    | { color?: never; theme: Record<keyof typeof THEMES, string> }
  )
}

type ChartContextProps = {
  config: ChartConfig
}

const ChartContext = React.createContext<ChartContextProps | null>(null)

function useChart() {
  const context = React.useContext(ChartContext)

  if (!context) {
    throw new Error("useChart must be used within a <ChartContainer />")
  }

  return context
}

function ChartContainer({
  id,
  className,
  children,
  config,
  ...props
}: React.ComponentProps<"div"> & {
  config: ChartConfig
  children: React.ComponentProps<
    typeof RechartsPrimitive.ResponsiveContainer
  >["children"]
}) {
  const uniqueId = React.useId()
  const chartId = `chart-${id || uniqueId.replace(/:/g, "")}`

  return (
    <ChartContext.Provider value={{ config }}>
      <div
        data-slot="chart"
        data-chart={chartId}
        className={cn(
          "[&_.recharts-cartesian-axis-tick_text]:fill-muted-foreground [&_.recharts-cartesian-grid_line[stroke='#ccc']]:stroke-border/50 [&_.recharts-curve.recharts-tooltip-cursor]:stroke-border [&_.recharts-polar-grid_[stroke='#ccc']]:stroke-border [&_.recharts-radial-bar-background-sector]:fill-muted [&_.recharts-rectangle.recharts-tooltip-cursor]:fill-muted [&_.recharts-reference-line_[stroke='#ccc']]:stroke-border flex aspect-video justify-center text-xs [&_.recharts-dot[stroke='#fff']]:stroke-transparent [&_.recharts-layer]:outline-hidden [&_.recharts-sector]:outline-hidden [&_.recharts-sector[stroke='#fff']]:stroke-transparent [&_.recharts-surface]:outline-hidden",
          className
        )}
        {...props}
      >
        <ChartStyle id={chartId} config={config} />
        <RechartsPrimitive.ResponsiveContainer>
          {children}
        </RechartsPrimitive.ResponsiveContainer>
      </div>
    </ChartContext.Provider>
  )
}

const ChartStyle = ({ id, config }: { id: string; config: ChartConfig }) => {
  const colorConfig = Object.entries(config).filter(
    ([, config]) => config.theme || config.color
  )

  if (!colorConfig.length) {
    return null
  }

  return (
    <style
      dangerouslySetInnerHTML={{
        __html: Object.entries(THEMES)
          .map(
            ([theme, prefix]) => `
${prefix} [data-chart=${id}] {
${colorConfig
  .map(([key, itemConfig]) => {
    const color =
      itemConfig.theme?.[theme as keyof typeof itemConfig.theme] ||
      itemConfig.color
    return color ? `  --color-${key}: ${color};` : null
  })
  .join("\n")}
}
`
          )
          .join("\n"),
      }}
    />
  )
}

const ChartTooltip = RechartsPrimitive.Tooltip

function ChartTooltipContent({
  active,
  payload,
  className,
  indicator = "dot",
  hideLabel = false,
  hideIndicator = false,
  label,
  labelFormatter,
  labelClassName,
  formatter,
  color,
  nameKey,
  labelKey,
}: React.ComponentProps<typeof RechartsPrimitive.Tooltip> &
  React.ComponentProps<"div"> & {
    hideLabel?: boolean
    hideIndicator?: boolean
    indicator?: "line" | "dot" | "dashed"
    nameKey?: string
    labelKey?: string
  }) {
  const { config } = useChart()

  const tooltipLabel = React.useMemo(() => {
    if (hideLabel || !payload?.length) {
      return null
    }

    const [item] = payload
    const key = `${labelKey || item?.dataKey || item?.name || "value"}`
    const itemConfig = getPayloadConfigFromPayload(config, item, key)
    const value =
      !labelKey && typeof label === "string"
        ? config[label as keyof typeof config]?.label || label
        : itemConfig?.label

    if (labelFormatter) {
      return (
        <div className={cn("font-medium", labelClassName)}>
          {labelFormatter(value, payload)}
        </div>
      )
    }

    if (!value) {
      return null
    }

    return <div className={cn("font-medium", labelClassName)}>{value}</div>
  }, [
    label,
    labelFormatter,
    payload,
    hideLabel,
    labelClassName,
    config,
    labelKey,
  ])

  if (!active || !payload?.length) {
    return null
  }

  const nestLabel = payload.length === 1 && indicator !== "dot"

  return (
    <div
      className={cn(
        "border-border/50 bg-background grid min-w-[8rem] items-start gap-1.5 rounded-lg border px-2.5 py-1.5 text-xs shadow-xl",
        className
      )}
    >
      {!nestLabel ? tooltipLabel : null}
      <div className="grid gap-1.5">
        {payload
          .filter((item) => item.type !== "none")
          .map((item, index) => {
            const key = `${nameKey || item.name || item.dataKey || "value"}`
            const itemConfig = getPayloadConfigFromPayload(config, item, key)
            const indicatorColor = color || item.payload.fill || item.color

            return (
              <div
                key={item.dataKey}
                className={cn(
                  "[&>svg]:text-muted-foreground flex w-full flex-wrap items-stretch gap-2 [&>svg]:h-2.5 [&>svg]:w-2.5",
                  indicator === "dot" && "items-center"
                )}
              >
                {formatter && item?.value !== undefined && item.name ? (
                  formatter(item.value, item.name, item, index, item.payload)
                ) : (
                  <>
                    {itemConfig?.icon ? (
                      <itemConfig.icon />
                    ) : (
                      !hideIndicator && (
                        <div
                          className={cn(
                            "shrink-0 rounded-[2px] border-(--color-border) bg-(--color-bg)",
                            {
                              "h-2.5 w-2.5": indicator === "dot",
                              "w-1": indicator === "line",
                              "w-0 border-[1.5px] border-dashed bg-transparent":
                                indicator === "dashed",
                              "my-0.5": nestLabel && indicator === "dashed",
                            }
                          )}
                          style={
                            {
                              "--color-bg": indicatorColor,
                              "--color-border": indicatorColor,
                            } as React.CSSProperties
                          }
                        />
                      )
                    )}
                    <div
                      className={cn(
                        "flex flex-1 justify-between leading-none",
                        nestLabel ? "items-end" : "items-center"
                      )}
                    >
                      <div className="grid gap-1.5">
                        {nestLabel ? tooltipLabel : null}
                        <span className="text-muted-foreground">
                          {itemConfig?.label || item.name}
                        </span>
                      </div>
                      {item.value && (
                        <span className="text-foreground font-mono font-medium tabular-nums">
                          {item.value.toLocaleString()}
                        </span>
                      )}
                    </div>
                  </>
                )}
              </div>
            )
          })}
      </div>
    </div>
  )
}

const ChartLegend = RechartsPrimitive.Legend

function ChartLegendContent({
  className,
  hideIcon = false,
  payload,
  verticalAlign = "bottom",
  nameKey,
}: React.ComponentProps<"div"> &
  Pick<RechartsPrimitive.LegendProps, "payload" | "verticalAlign"> & {
    hideIcon?: boolean
    nameKey?: string
  }) {
  const { config } = useChart()

  if (!payload?.length) {
    return null
  }

  return (
    <div
      className={cn(
        "flex items-center justify-center gap-4",
        verticalAlign === "top" ? "pb-3" : "pt-3",
        className
      )}
    >
      {payload
        .filter((item) => item.type !== "none")
        .map((item) => {
          const key = `${nameKey || item.dataKey || "value"}`
          const itemConfig = getPayloadConfigFromPayload(config, item, key)

          return (
            <div
              key={item.value}
              className={cn(
                "[&>svg]:text-muted-foreground flex items-center gap-1.5 [&>svg]:h-3 [&>svg]:w-3"
              )}
            >
              {itemConfig?.icon && !hideIcon ? (
                <itemConfig.icon />
              ) : (
                <div
                  className="h-2 w-2 shrink-0 rounded-[2px]"
                  style={{
                    backgroundColor: item.color,
                  }}
                />
              )}
              {itemConfig?.label}
            </div>
          )
        })}
    </div>
  )
}

// Helper to extract item config from a payload.
function getPayloadConfigFromPayload(
  config: ChartConfig,
  payload: unknown,
  key: string
) {
  if (typeof payload !== "object" || payload === null) {
    return undefined
  }

  const payloadPayload =
    "payload" in payload &&
    typeof payload.payload === "object" &&
    payload.payload !== null
      ? payload.payload
      : undefined

  let configLabelKey: string = key

  if (
    key in payload &&
    typeof payload[key as keyof typeof payload] === "string"
  ) {
    configLabelKey = payload[key as keyof typeof payload] as string
  } else if (
    payloadPayload &&
    key in payloadPayload &&
    typeof payloadPayload[key as keyof typeof payloadPayload] === "string"
  ) {
    configLabelKey = payloadPayload[
      key as keyof typeof payloadPayload
    ] as string
  }

  return configLabelKey in config
    ? config[configLabelKey]
    : config[key as keyof typeof config]
}

export {
  ChartContainer,
  ChartTooltip,
  ChartTooltipContent,
  ChartLegend,
  ChartLegendContent,
  ChartStyle,
}
```

## Examples

### Combo Chart

The canonical combo — revenue bars and an orders line on a shared axis.

**Install:**

```bash
npx shadcn@latest add @designrevision/combo-chart-demo-01
```

**Dependencies:** recharts, chart, card

```tsx
// components/ui/combo-chart-demo-01.tsx
"use client"

import { Bar, CartesianGrid, ComposedChart, Line, XAxis, YAxis } from "recharts"

import {
  Card,
  CardContent,
  CardDescription,
  CardHeader,
  CardTitle,
} from "@/components/ui/card"
import {
  type ChartConfig,
  ChartContainer,
  ChartLegend,
  ChartLegendContent,
  ChartTooltip,
  ChartTooltipContent,
} from "@/components/ui/chart"

const chartData = [
  { month: "January", revenue: 186, orders: 80 },
  { month: "February", revenue: 305, orders: 200 },
  { month: "March", revenue: 237, orders: 120 },
  { month: "April", revenue: 273, orders: 190 },
  { month: "May", revenue: 209, orders: 130 },
  { month: "June", revenue: 264, orders: 140 },
]

const chartConfig = {
  revenue: { label: "Revenue", color: "var(--chart-1)" },
  orders: { label: "Orders", color: "var(--chart-2)" },
} satisfies ChartConfig

export default function ComboChartDemo01() {
  return (
    <Card className="w-full max-w-md">
      <CardHeader>
        <CardTitle>Combo Chart</CardTitle>
        <CardDescription>Revenue bars with an orders line</CardDescription>
      </CardHeader>
      <CardContent>
        <ChartContainer config={chartConfig}>
          <ComposedChart
            accessibilityLayer
            data={chartData}
            margin={{ left: 12, right: 12 }}
          >
            <CartesianGrid vertical={false} />
            <XAxis
              dataKey="month"
              tickLine={false}
              axisLine={false}
              tickMargin={8}
              tickFormatter={(value) => value.slice(0, 3)}
            />
            <YAxis tickLine={false} axisLine={false} tickMargin={8} />
            <ChartTooltip cursor={false} content={<ChartTooltipContent />} />
            <ChartLegend content={<ChartLegendContent />} />
            <Bar dataKey="revenue" fill="var(--color-revenue)" radius={4} />
            <Line
              dataKey="orders"
              type="monotone"
              stroke="var(--color-orders)"
              strokeWidth={2}
              dot={false}
            />
          </ComposedChart>
        </ChartContainer>
      </CardContent>
    </Card>
  )
}
```

---

### Dual axis

Bars and a line on two independent Y scales — $ left, % right.

**Install:**

```bash
npx shadcn@latest add @designrevision/combo-chart-dual-axis-01
```

**Dependencies:** recharts, chart, card

```tsx
// components/ui/combo-chart-dual-axis-01.tsx
"use client"

import { Bar, CartesianGrid, ComposedChart, Line, XAxis, YAxis } from "recharts"

import {
  Card,
  CardContent,
  CardDescription,
  CardHeader,
  CardTitle,
} from "@/components/ui/card"
import {
  type ChartConfig,
  ChartContainer,
  ChartLegend,
  ChartLegendContent,
  ChartTooltip,
  ChartTooltipContent,
} from "@/components/ui/chart"

const chartData = [
  { month: "January", revenue: 18600, conversion: 3.2 },
  { month: "February", revenue: 30500, conversion: 4.1 },
  { month: "March", revenue: 23700, conversion: 3.6 },
  { month: "April", revenue: 27300, conversion: 4.4 },
  { month: "May", revenue: 20900, conversion: 3.9 },
  { month: "June", revenue: 26400, conversion: 4.8 },
]

const chartConfig = {
  revenue: { label: "Revenue ($)", color: "var(--chart-1)" },
  conversion: { label: "Conversion (%)", color: "var(--chart-2)" },
} satisfies ChartConfig

export default function ComboChartDualAxis01() {
  return (
    <Card className="w-full max-w-md">
      <CardHeader>
        <CardTitle>Combo Chart — Dual Axis</CardTitle>
        <CardDescription>Revenue and conversion on two scales</CardDescription>
      </CardHeader>
      <CardContent>
        <ChartContainer config={chartConfig}>
          <ComposedChart
            accessibilityLayer
            data={chartData}
            margin={{ left: 4, right: 4 }}
          >
            <CartesianGrid vertical={false} />
            <XAxis
              dataKey="month"
              tickLine={false}
              axisLine={false}
              tickMargin={8}
              tickFormatter={(value) => value.slice(0, 3)}
            />
            <YAxis
              yAxisId="left"
              tickLine={false}
              axisLine={false}
              tickMargin={8}
              tickFormatter={(value) => `$${value / 1000}k`}
            />
            <YAxis
              yAxisId="right"
              orientation="right"
              tickLine={false}
              axisLine={false}
              tickMargin={8}
              tickFormatter={(value) => `${value}%`}
            />
            <ChartTooltip cursor={false} content={<ChartTooltipContent />} />
            <ChartLegend content={<ChartLegendContent />} />
            <Bar
              yAxisId="left"
              dataKey="revenue"
              fill="var(--color-revenue)"
              radius={4}
            />
            <Line
              yAxisId="right"
              dataKey="conversion"
              type="monotone"
              stroke="var(--color-conversion)"
              strokeWidth={2}
              dot={{ fill: "var(--color-conversion)" }}
            />
          </ComposedChart>
        </ChartContainer>
      </CardContent>
    </Card>
  )
}
```

---

### Area + bars

A gradient area trend layered over signup bars.

**Install:**

```bash
npx shadcn@latest add @designrevision/combo-chart-area-bar-01
```

**Dependencies:** recharts, chart, card

```tsx
// components/ui/combo-chart-area-bar-01.tsx
"use client"

import {
  Area,
  Bar,
  CartesianGrid,
  ComposedChart,
  XAxis,
  YAxis,
} from "recharts"

import {
  Card,
  CardContent,
  CardDescription,
  CardHeader,
  CardTitle,
} from "@/components/ui/card"
import {
  type ChartConfig,
  ChartContainer,
  ChartLegend,
  ChartLegendContent,
  ChartTooltip,
  ChartTooltipContent,
} from "@/components/ui/chart"

const chartData = [
  { month: "January", visitors: 320, signups: 80 },
  { month: "February", visitors: 410, signups: 200 },
  { month: "March", visitors: 360, signups: 120 },
  { month: "April", visitors: 470, signups: 190 },
  { month: "May", visitors: 420, signups: 130 },
  { month: "June", visitors: 520, signups: 160 },
]

const chartConfig = {
  visitors: { label: "Visitors", color: "var(--chart-1)" },
  signups: { label: "Signups", color: "var(--chart-2)" },
} satisfies ChartConfig

export default function ComboChartAreaBar01() {
  return (
    <Card className="w-full max-w-md">
      <CardHeader>
        <CardTitle>Combo Chart — Area + Bars</CardTitle>
        <CardDescription>A visitors trend over signup bars</CardDescription>
      </CardHeader>
      <CardContent>
        <ChartContainer config={chartConfig}>
          <ComposedChart
            accessibilityLayer
            data={chartData}
            margin={{ left: 12, right: 12 }}
          >
            <CartesianGrid vertical={false} />
            <XAxis
              dataKey="month"
              tickLine={false}
              axisLine={false}
              tickMargin={8}
              tickFormatter={(value) => value.slice(0, 3)}
            />
            <YAxis tickLine={false} axisLine={false} tickMargin={8} />
            <ChartTooltip cursor={false} content={<ChartTooltipContent />} />
            <ChartLegend content={<ChartLegendContent />} />
            <defs>
              <linearGradient id="fillComboVisitors" x1="0" y1="0" x2="0" y2="1">
                <stop
                  offset="5%"
                  stopColor="var(--color-visitors)"
                  stopOpacity={0.6}
                />
                <stop
                  offset="95%"
                  stopColor="var(--color-visitors)"
                  stopOpacity={0.05}
                />
              </linearGradient>
            </defs>
            <Area
              dataKey="visitors"
              type="monotone"
              fill="url(#fillComboVisitors)"
              stroke="var(--color-visitors)"
              strokeWidth={2}
            />
            <Bar
              dataKey="signups"
              fill="var(--color-signups)"
              radius={4}
              barSize={20}
            />
          </ComposedChart>
        </ChartContainer>
      </CardContent>
    </Card>
  )
}
```

---

### Stacked bars + line

Stacked desktop/mobile bars with an average line overlaid.

**Install:**

```bash
npx shadcn@latest add @designrevision/combo-chart-stacked-01
```

**Dependencies:** recharts, chart, card

```tsx
// components/ui/combo-chart-stacked-01.tsx
"use client"

import { Bar, CartesianGrid, ComposedChart, Line, XAxis, YAxis } from "recharts"

import {
  Card,
  CardContent,
  CardDescription,
  CardHeader,
  CardTitle,
} from "@/components/ui/card"
import {
  type ChartConfig,
  ChartContainer,
  ChartLegend,
  ChartLegendContent,
  ChartTooltip,
  ChartTooltipContent,
} from "@/components/ui/chart"

const chartData = [
  { month: "January", desktop: 120, mobile: 66, average: 93 },
  { month: "February", desktop: 200, mobile: 105, average: 152 },
  { month: "March", desktop: 150, mobile: 87, average: 118 },
  { month: "April", desktop: 175, mobile: 98, average: 136 },
  { month: "May", desktop: 140, mobile: 69, average: 104 },
  { month: "June", desktop: 190, mobile: 74, average: 132 },
]

const chartConfig = {
  desktop: { label: "Desktop", color: "var(--chart-1)" },
  mobile: { label: "Mobile", color: "var(--chart-2)" },
  average: { label: "Average", color: "var(--chart-4)" },
} satisfies ChartConfig

export default function ComboChartStacked01() {
  return (
    <Card className="w-full max-w-md">
      <CardHeader>
        <CardTitle>Combo Chart — Stacked + Line</CardTitle>
        <CardDescription>Stacked bars with an average line</CardDescription>
      </CardHeader>
      <CardContent>
        <ChartContainer config={chartConfig}>
          <ComposedChart
            accessibilityLayer
            data={chartData}
            margin={{ left: 12, right: 12 }}
          >
            <CartesianGrid vertical={false} />
            <XAxis
              dataKey="month"
              tickLine={false}
              axisLine={false}
              tickMargin={8}
              tickFormatter={(value) => value.slice(0, 3)}
            />
            <YAxis tickLine={false} axisLine={false} tickMargin={8} />
            <ChartTooltip cursor={false} content={<ChartTooltipContent />} />
            <ChartLegend content={<ChartLegendContent />} />
            <Bar
              dataKey="desktop"
              stackId="a"
              fill="var(--color-desktop)"
              radius={[0, 0, 4, 4]}
            />
            <Bar
              dataKey="mobile"
              stackId="a"
              fill="var(--color-mobile)"
              radius={[4, 4, 0, 0]}
            />
            <Line
              dataKey="average"
              type="monotone"
              stroke="var(--color-average)"
              strokeWidth={2}
              dot={false}
            />
          </ComposedChart>
        </ChartContainer>
      </CardContent>
    </Card>
  )
}
```

---

### Target reference line

Sales bars against a dashed ReferenceLine target with a label.

**Install:**

```bash
npx shadcn@latest add @designrevision/combo-chart-target-01
```

**Dependencies:** recharts, chart, card

```tsx
// components/ui/combo-chart-target-01.tsx
"use client"

import {
  Bar,
  CartesianGrid,
  ComposedChart,
  ReferenceLine,
  XAxis,
  YAxis,
} from "recharts"

import {
  Card,
  CardContent,
  CardDescription,
  CardHeader,
  CardTitle,
} from "@/components/ui/card"
import {
  type ChartConfig,
  ChartContainer,
  ChartTooltip,
  ChartTooltipContent,
} from "@/components/ui/chart"

const chartData = [
  { month: "January", sales: 186 },
  { month: "February", sales: 305 },
  { month: "March", sales: 237 },
  { month: "April", sales: 273 },
  { month: "May", sales: 209 },
  { month: "June", sales: 264 },
]

const TARGET = 250

const chartConfig = {
  sales: { label: "Sales", color: "var(--chart-1)" },
  target: { label: "Target", color: "var(--chart-3)" },
} satisfies ChartConfig

export default function ComboChartTarget01() {
  return (
    <Card className="w-full max-w-md">
      <CardHeader>
        <CardTitle>Combo Chart — Target Line</CardTitle>
        <CardDescription>Sales bars against a target reference</CardDescription>
      </CardHeader>
      <CardContent>
        <ChartContainer config={chartConfig}>
          <ComposedChart
            accessibilityLayer
            data={chartData}
            margin={{ left: 12, right: 12, top: 16 }}
          >
            <CartesianGrid vertical={false} />
            <XAxis
              dataKey="month"
              tickLine={false}
              axisLine={false}
              tickMargin={8}
              tickFormatter={(value) => value.slice(0, 3)}
            />
            <YAxis tickLine={false} axisLine={false} tickMargin={8} />
            <ChartTooltip
              cursor={false}
              content={<ChartTooltipContent hideLabel />}
            />
            <Bar dataKey="sales" fill="var(--color-sales)" radius={4} />
            <ReferenceLine
              y={TARGET}
              stroke="var(--color-target)"
              strokeDasharray="4 4"
              strokeWidth={2}
              label={{
                value: `Target ${TARGET}`,
                position: "insideTopRight",
                fill: "var(--color-target)",
                fontSize: 11,
              }}
            />
          </ComposedChart>
        </ChartContainer>
      </CardContent>
    </Card>
  )
}
```

---

### Loading state

A skeleton shaped like the combo chart.

**Install:**

```bash
npx shadcn@latest add @designrevision/combo-chart-loading-01
```

**Dependencies:** card, skeleton

```tsx
// components/ui/combo-chart-loading-01.tsx
import { Card, CardContent, CardHeader } from "@/components/ui/card"
import { Skeleton } from "@/components/ui/skeleton"

// A loading state for a combo chart — skeleton bars at varying heights.
const bars = [55, 88, 70, 78, 62, 82]

export default function ComboChartLoading01() {
  return (
    <Card className="w-full max-w-md">
      <CardHeader className="gap-2">
        <Skeleton className="h-5 w-28" />
        <Skeleton className="h-4 w-44" />
      </CardHeader>
      <CardContent>
        <div className="flex aspect-video items-end justify-between gap-2 px-1 pb-6">
          {bars.map((height, i) => (
            <Skeleton
              key={i}
              className="w-full rounded-md rounded-b-none"
              style={{ height: `${height}%` }}
            />
          ))}
        </div>
      </CardContent>
    </Card>
  )
}
```

---

### Empty state

A graceful no-data state with an icon and message.

**Install:**

```bash
npx shadcn@latest add @designrevision/combo-chart-empty-01
```

**Dependencies:** lucide-react, card

```tsx
// components/ui/combo-chart-empty-01.tsx
import { ChartColumnBig } from "lucide-react"

import {
  Card,
  CardContent,
  CardDescription,
  CardHeader,
  CardTitle,
} from "@/components/ui/card"

export default function ComboChartEmpty01() {
  return (
    <Card className="w-full max-w-md">
      <CardHeader>
        <CardTitle>Combo Chart</CardTitle>
        <CardDescription>Revenue and orders</CardDescription>
      </CardHeader>
      <CardContent>
        <div className="flex aspect-video flex-col items-center justify-center gap-2 rounded-lg border border-dashed text-center">
          <ChartColumnBig className="text-muted-foreground size-8" />
          <div className="text-sm font-medium">No data to display</div>
          <p className="text-muted-foreground max-w-[15rem] text-xs">
            Your metrics will appear here once data comes in.
          </p>
        </div>
      </CardContent>
    </Card>
  )
}
```

---

### Accessible

role/aria-label with a screen-reader data table of both series.

**Install:**

```bash
npx shadcn@latest add @designrevision/combo-chart-a11y-01
```

**Dependencies:** recharts, chart, card

```tsx
// components/ui/combo-chart-a11y-01.tsx
"use client"

import { Bar, CartesianGrid, ComposedChart, Line, XAxis, YAxis } from "recharts"

import {
  Card,
  CardContent,
  CardDescription,
  CardHeader,
  CardTitle,
} from "@/components/ui/card"
import {
  type ChartConfig,
  ChartContainer,
  ChartTooltip,
  ChartTooltipContent,
} from "@/components/ui/chart"

const chartData = [
  { month: "January", revenue: 186, orders: 80 },
  { month: "February", revenue: 305, orders: 200 },
  { month: "March", revenue: 237, orders: 120 },
  { month: "April", revenue: 273, orders: 190 },
  { month: "May", revenue: 209, orders: 130 },
  { month: "June", revenue: 264, orders: 140 },
]

const chartConfig = {
  revenue: { label: "Revenue", color: "var(--chart-1)" },
  orders: { label: "Orders", color: "var(--chart-2)" },
} satisfies ChartConfig

export default function ComboChartA11y01() {
  return (
    <Card className="w-full max-w-md">
      <CardHeader>
        <CardTitle>Accessible Combo Chart</CardTitle>
        <CardDescription>
          Revenue and orders, with a data table
        </CardDescription>
      </CardHeader>
      <CardContent>
        <ChartContainer
          config={chartConfig}
          role="img"
          aria-label="Combo chart of revenue (bars) and orders (line) by month, January to June 2024."
        >
          <ComposedChart
            accessibilityLayer
            data={chartData}
            margin={{ left: 12, right: 12 }}
          >
            <CartesianGrid vertical={false} />
            <XAxis
              dataKey="month"
              tickLine={false}
              axisLine={false}
              tickMargin={8}
              tickFormatter={(value) => value.slice(0, 3)}
            />
            <YAxis tickLine={false} axisLine={false} tickMargin={8} />
            <ChartTooltip cursor={false} content={<ChartTooltipContent />} />
            <Bar dataKey="revenue" fill="var(--color-revenue)" radius={4} />
            <Line
              dataKey="orders"
              type="monotone"
              stroke="var(--color-orders)"
              strokeWidth={2}
              dot={false}
            />
          </ComposedChart>
        </ChartContainer>

        {/* Visually-hidden data-table fallback for assistive technology. */}
        <table className="sr-only">
          <caption>Revenue and orders by month</caption>
          <thead>
            <tr>
              <th scope="col">Month</th>
              <th scope="col">Revenue</th>
              <th scope="col">Orders</th>
            </tr>
          </thead>
          <tbody>
            {chartData.map((row) => (
              <tr key={row.month}>
                <th scope="row">{row.month}</th>
                <td>{row.revenue}</td>
                <td>{row.orders}</td>
              </tr>
            ))}
          </tbody>
        </table>
      </CardContent>
    </Card>
  )
}
```