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Mono shadcn theme

A pure monochrome shadcn theme — grayscale surfaces with crisp black-and-white contrast.

Open in the editor Browse all themes

Install with the shadcn CLI

npx shadcn@latest add https://designrevision.com/r/themes/mono.json

Or copy the globals.css below and paste the :root / .dark blocks into your project.

Live preview

Light
The quick brown fox
Every element here is painted by the theme tokens.
Primary Secondary Outline Destructive
Badge Accent Muted
Overview
Dark
The quick brown fox
Every element here is painted by the theme tokens.
Primary Secondary Outline Destructive
Badge Accent Muted
Overview

globals.css

@import "tailwindcss";

@custom-variant dark (&:is(.dark *));

:root {
  --background: oklch(0.995 0 0);
  --foreground: oklch(0.205 0 0);
  --card: oklch(0.995 0 0);
  --card-foreground: oklch(0.205 0 0);
  --popover: oklch(0.995 0 0);
  --popover-foreground: oklch(0.205 0 0);
  --primary: oklch(0.4 0 0);
  --primary-foreground: oklch(0.985 0 0);
  --secondary: oklch(0.968 0 0);
  --secondary-foreground: oklch(0.205 0 0);
  --muted: oklch(0.968 0 0);
  --muted-foreground: oklch(0.205 0.0192 0);
  --accent: oklch(0.96 0 20);
  --accent-foreground: oklch(0.205 0 20);
  --destructive: oklch(0.5843 0.2192 27);
  --destructive-foreground: oklch(1 0 27);
  --border: oklch(0.922 0 0);
  --input: oklch(0.922 0 0);
  --ring: oklch(0.4 0 0);
  --chart-1: oklch(0.62 0.1492 0);
  --chart-2: oklch(0.68 0.1492 40);
  --chart-3: oklch(0.62 0.1276 80);
  --chart-4: oklch(0.68 0.1492 160);
  --chart-5: oklch(0.62 0.1412 240);
  --sidebar: oklch(0.995 0 0);
  --sidebar-foreground: oklch(0.205 0 0);
  --sidebar-primary: oklch(0.4 0 0);
  --sidebar-primary-foreground: oklch(0.985 0 0);
  --sidebar-accent: oklch(0.96 0 20);
  --sidebar-accent-foreground: oklch(0.205 0 20);
  --sidebar-border: oklch(0.922 0 0);
  --sidebar-ring: oklch(0.4 0 0);
  --font-sans: Inter, ui-sans-serif, system-ui, sans-serif;
  --font-serif: Source Serif 4, ui-serif, Georgia, serif;
  --font-mono: JetBrains Mono, ui-monospace, SFMono-Regular, monospace;
  --radius: 0.625rem;
  --shadow-x: 0px;
  --shadow-y: 1px;
  --shadow-blur: 3px;
  --shadow-spread: 0px;
  --shadow-opacity: 0.1;
  --shadow-color: oklch(0 0 0);
  --shadow-2xs: 0px 1px 3px 0px hsl(0 0% 0% / 0.05);
  --shadow-xs: 0px 1px 3px 0px hsl(0 0% 0% / 0.05);
  --shadow-sm: 0px 1px 3px 0px hsl(0 0% 0% / 0.10), 0px 1px 2px -1px hsl(0 0% 0% / 0.10);
  --shadow: 0px 1px 3px 0px hsl(0 0% 0% / 0.10), 0px 1px 2px -1px hsl(0 0% 0% / 0.10);
  --shadow-md: 0px 1px 3px 0px hsl(0 0% 0% / 0.10), 0px 2px 4px -1px hsl(0 0% 0% / 0.10);
  --shadow-lg: 0px 1px 3px 0px hsl(0 0% 0% / 0.10), 0px 4px 6px -1px hsl(0 0% 0% / 0.10);
  --shadow-xl: 0px 1px 3px 0px hsl(0 0% 0% / 0.10), 0px 8px 10px -1px hsl(0 0% 0% / 0.10);
  --shadow-2xl: 0px 1px 3px 0px hsl(0 0% 0% / 0.25);
  --spacing: 0.25rem;
}

.dark {
  --background: oklch(0.16 0 0);
  --foreground: oklch(0.985 0 0);
  --card: oklch(0.205 0 0);
  --card-foreground: oklch(0.985 0 0);
  --popover: oklch(0.205 0 0);
  --popover-foreground: oklch(0.985 0 0);
  --primary: oklch(0.62 0 0);
  --primary-foreground: oklch(0.205 0 0);
  --secondary: oklch(0.27 0 0);
  --secondary-foreground: oklch(0.985 0 0);
  --muted: oklch(0.27 0 0);
  --muted-foreground: oklch(0.6412 0 0);
  --accent: oklch(0.31 0 20);
  --accent-foreground: oklch(0.985 0 20);
  --destructive: oklch(0.581 0.1892 22);
  --destructive-foreground: oklch(1 0 22);
  --border: oklch(0.28 0 0);
  --input: oklch(0.28 0 0);
  --ring: oklch(0.62 0 0);
  --chart-1: oklch(0.7 0.1692 0);
  --chart-2: oklch(0.74 0.1631 40);
  --chart-3: oklch(0.7 0.1442 80);
  --chart-4: oklch(0.74 0.1666 160);
  --chart-5: oklch(0.7 0.1595 240);
  --sidebar: oklch(0.16 0 0);
  --sidebar-foreground: oklch(0.985 0 0);
  --sidebar-primary: oklch(0.62 0 0);
  --sidebar-primary-foreground: oklch(0.205 0 0);
  --sidebar-accent: oklch(0.31 0 20);
  --sidebar-accent-foreground: oklch(0.985 0 20);
  --sidebar-border: oklch(0.28 0 0);
  --sidebar-ring: oklch(0.62 0 0);
  --font-sans: Inter, ui-sans-serif, system-ui, sans-serif;
  --font-serif: Source Serif 4, ui-serif, Georgia, serif;
  --font-mono: JetBrains Mono, ui-monospace, SFMono-Regular, monospace;
  --radius: 0.625rem;
  --shadow-x: 0px;
  --shadow-y: 1px;
  --shadow-blur: 3px;
  --shadow-spread: 0px;
  --shadow-opacity: 0.1;
  --shadow-color: oklch(0 0 0);
  --shadow-2xs: 0px 1px 3px 0px hsl(0 0% 0% / 0.05);
  --shadow-xs: 0px 1px 3px 0px hsl(0 0% 0% / 0.05);
  --shadow-sm: 0px 1px 3px 0px hsl(0 0% 0% / 0.10), 0px 1px 2px -1px hsl(0 0% 0% / 0.10);
  --shadow: 0px 1px 3px 0px hsl(0 0% 0% / 0.10), 0px 1px 2px -1px hsl(0 0% 0% / 0.10);
  --shadow-md: 0px 1px 3px 0px hsl(0 0% 0% / 0.10), 0px 2px 4px -1px hsl(0 0% 0% / 0.10);
  --shadow-lg: 0px 1px 3px 0px hsl(0 0% 0% / 0.10), 0px 4px 6px -1px hsl(0 0% 0% / 0.10);
  --shadow-xl: 0px 1px 3px 0px hsl(0 0% 0% / 0.10), 0px 8px 10px -1px hsl(0 0% 0% / 0.10);
  --shadow-2xl: 0px 1px 3px 0px hsl(0 0% 0% / 0.25);
}

@theme inline {
  --color-background: var(--background);
  --color-foreground: var(--foreground);
  --color-card: var(--card);
  --color-card-foreground: var(--card-foreground);
  --color-popover: var(--popover);
  --color-popover-foreground: var(--popover-foreground);
  --color-primary: var(--primary);
  --color-primary-foreground: var(--primary-foreground);
  --color-secondary: var(--secondary);
  --color-secondary-foreground: var(--secondary-foreground);
  --color-muted: var(--muted);
  --color-muted-foreground: var(--muted-foreground);
  --color-accent: var(--accent);
  --color-accent-foreground: var(--accent-foreground);
  --color-destructive: var(--destructive);
  --color-destructive-foreground: var(--destructive-foreground);
  --color-border: var(--border);
  --color-input: var(--input);
  --color-ring: var(--ring);
  --color-chart-1: var(--chart-1);
  --color-chart-2: var(--chart-2);
  --color-chart-3: var(--chart-3);
  --color-chart-4: var(--chart-4);
  --color-chart-5: var(--chart-5);
  --color-sidebar: var(--sidebar);
  --color-sidebar-foreground: var(--sidebar-foreground);
  --color-sidebar-primary: var(--sidebar-primary);
  --color-sidebar-primary-foreground: var(--sidebar-primary-foreground);
  --color-sidebar-accent: var(--sidebar-accent);
  --color-sidebar-accent-foreground: var(--sidebar-accent-foreground);
  --color-sidebar-border: var(--sidebar-border);
  --color-sidebar-ring: var(--sidebar-ring);

  --font-sans: var(--font-sans);
  --font-mono: var(--font-mono);
  --font-serif: var(--font-serif);

  --radius-sm: calc(var(--radius) - 4px);
  --radius-md: calc(var(--radius) - 2px);
  --radius-lg: var(--radius);
  --radius-xl: calc(var(--radius) + 4px);
  --shadow-2xs: var(--shadow-2xs);
  --shadow-xs: var(--shadow-xs);
  --shadow-sm: var(--shadow-sm);
  --shadow: var(--shadow);
  --shadow-md: var(--shadow-md);
  --shadow-lg: var(--shadow-lg);
  --shadow-xl: var(--shadow-xl);
  --shadow-2xl: var(--shadow-2xl);
}

@layer base {
  * {
    @apply border-border outline-ring/50;
  }
  body {
    @apply bg-background text-foreground;
  }
}

More shadcn themes

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Light
Minimal
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Frequently asked questions

Is the Mono theme free?

Yes — every shadcn theme here is free to use with no signup. Copy the CSS or install via the shadcn CLI.

How do I install it?

Run the shadcn CLI command above, or copy the globals.css and paste its :root and .dark blocks into your project. It's Tailwind v4 + OKLCH; use the generator's Code panel for a Tailwind v3 version.

Does it include a dark mode?

Yes. Every theme ships accessible, contrast-checked light and dark modes — see both in the live preview above.

Can I customize it?

Open this theme in the editor to tweak any color, radius, font or shadow, then export your own version.