ToolsTheme Generator
Shadcn Theme Generator
Pick a primary color and base hue — get a complete shadcn theme with all 19 CSS variables for both light and dark modes. Live preview, HSL or OKLCH output, paste straight into your app/globals.css.
Drives buttons, focus rings, and accent links.
Tints the neutral surfaces (background, card, muted, border).
Output format
HSL is the legacy shadcn convention; OKLCH ships with shadcn v2 and newer.
Live preview
Card title
This is sample muted text inside the card.
BadgeAccent
Popover content
Surfaces use card / popover tokens.
CSS output
@layer base {
:root {
--radius: 0.5rem;
--background: 240 0% 100%;
--foreground: 240 10% 3.9%;
--card: 240 0% 100%;
--card-foreground: 240 10% 3.9%;
--popover: 240 0% 100%;
--popover-foreground: 240 10% 3.9%;
--primary: 217.2 32.6% 17.5%;
--primary-foreground: 0 0% 98%;
--secondary: 240 4.8% 95.9%;
--secondary-foreground: 240 5.9% 10%;
--muted: 240 4.8% 95.9%;
--muted-foreground: 240 3.8% 46.1%;
--accent: 240 4.8% 95.9%;
--accent-foreground: 240 5.9% 10%;
--destructive: 0 84.2% 60.2%;
--destructive-foreground: 0 0% 98%;
--border: 240 5.9% 90%;
--input: 240 5.9% 90%;
--ring: 217.2 32.6% 17.5%;
}
.dark {
--background: 240 10% 3.9%;
--foreground: 240 0% 98%;
--card: 240 10% 3.9%;
--card-foreground: 240 0% 98%;
--popover: 240 10% 3.9%;
--popover-foreground: 240 0% 98%;
--primary: 217.2 32.6% 17.5%;
--primary-foreground: 0 0% 98%;
--secondary: 240 3.7% 15.9%;
--secondary-foreground: 240 0% 98%;
--muted: 240 3.7% 15.9%;
--muted-foreground: 240 5% 64.9%;
--accent: 240 3.7% 15.9%;
--accent-foreground: 240 0% 98%;
--destructive: 0 62.8% 30.6%;
--destructive-foreground: 0 0% 98%;
--border: 240 3.7% 15.9%;
--input: 240 3.7% 15.9%;
--ring: 217.2 32.6% 17.5%;
}
}A few things to know
- Destructive stays red across all themes — colorblind users depend on its hue stability for danger affordances.
- The primary-foreground is auto-inverted for contrast: a dark primary gets a light foreground, and vice versa.
- HSL output uses bare values (e.g.,
0 0% 100%) wrapped at usage withhsl(var(--token))— matches shadcn v0/v1 convention. OKLCH outputs fulloklch(...)functions used directly viavar(--token)— matches shadcn v2+. - Runs entirely in your browser. No telemetry, no server round-trips.