Cold Carbon

Cold Carbon is a blue shadcn/ui theme with rounded corners and sans-serif typography, in light and dark modes.

Blue Pastel Cool Rounded

Sans: System
Serif: System
Mono: System
Radius: 0.625rem

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Name

Framework

Notes

Visitors

January – June

+12.5%

Buttons

Typography

The theme's three font families.

Sans · System

The quick brown fox

Serif · System

jumps over the lazy dog.

Mono · System

npx shadcn add button

Account

Accept terms and conditions

Notifications

Choose what you want to hear about.

Product updates

New features and releases

Security alerts

Sign-ins from new devices

Marketing

Tips, offers and news

Payment method

CardPayPalApple Pay

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Team

Invite your teammates to collaborate.

SDJLINWK

OwnerEditorViewerSuspended

Storage7.2 of 10 GB

Volume64%

Invoices

Invoice	Status	Amount
INV001	Paid	$250.00
INV002	Pending	$150.00
INV003	Unpaid	$350.00
INV004	Paid	$450.00

FAQ

Yes. It adheres to the WAI-ARIA design pattern.

Colors

Click any swatch to copy its OKLCH value.

Base

Brand

Lines

Charts

Sidebar

StatusOptional, generated to match

Use this theme

Install it with the shadcn CLI, paste the CSS, or export tokens for your design tool.

Paste into app/globals.css, replacing the existing :root and .dark blocks.

Include success, warning & info colors

:root {
  --background: oklch(0.9301 0.0345 252.26);
  --foreground: oklch(0.4367 0.1508 262.17);
  --card: oklch(0.9897 0.0051 247.88);
  --card-foreground: oklch(0.1443 0.0191 261.16);
  --popover: oklch(0.9897 0.0051 247.88);
  --popover-foreground: oklch(0.1443 0.0191 261.16);
  --primary: oklch(0.729 0.0795 261.81);
  --primary-foreground: oklch(0 0 0);
  --secondary: oklch(0.8922 0.0526 259.03);
  --secondary-foreground: oklch(0.6437 0.1133 260.82);
  --muted: oklch(0.9442 0.0137 258.35);
  --muted-foreground: oklch(0.5195 0.0188 262.69);
  --accent: oklch(0.8511 0.0739 258.58);
  --accent-foreground: oklch(0.9781 0.0103 261.79);
  --destructive: oklch(0.577 0.245 27.33);
  --destructive-foreground: oklch(1 0 0);
  --border: oklch(0.9013 0.0156 257.2);
  --input: oklch(0.9013 0.0156 257.2);
  --ring: oklch(0.6503 0.022 257.49);
  --chart-1: oklch(0.81 0.1 252);
  --chart-2: oklch(0.62 0.19 260);
  --chart-3: oklch(0.55 0.22 263);
  --chart-4: oklch(0.49 0.22 264);
  --chart-5: oklch(0.42 0.18 266);
  --sidebar: oklch(0.9601 0.0103 261.79);
  --sidebar-foreground: oklch(0.1443 0.0191 261.16);
  --sidebar-primary: oklch(0.2038 0.0264 260.93);
  --sidebar-primary-foreground: oklch(0.9851 0 0);
  --sidebar-accent: oklch(0.9442 0.0137 258.35);
  --sidebar-accent-foreground: oklch(0.2038 0.0264 260.93);
  --sidebar-border: oklch(0.9013 0.0156 257.2);
  --sidebar-ring: oklch(0.6503 0.022 257.49);
  --font-sans: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans', sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji';
  --font-serif: ui-serif, Georgia, Cambria, "Times New Roman", Times, serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  --radius: 0.625rem;
  --spacing: 0.25rem;
  --tracking-normal: 0em;
  --shadow-color: oklch(0 0 0);
  --shadow-opacity: 0.69;
  --shadow-blur: 25px;
  --shadow-spread: 13px;
  --shadow-offset-x: -2px;
  --shadow-offset-y: 43px;
  --shadow-2xs: -2px 43px 25px 13px hsl(0 0% 0% / 0.34);
  --shadow-xs: -2px 43px 25px 13px hsl(0 0% 0% / 0.34);
  --shadow-sm: -2px 43px 25px 13px hsl(0 0% 0% / 0.69), -2px 1px 2px 12px hsl(0 0% 0% / 0.69);
  --shadow: -2px 43px 25px 13px hsl(0 0% 0% / 0.69), -2px 1px 2px 12px hsl(0 0% 0% / 0.69);
  --shadow-md: -2px 43px 25px 13px hsl(0 0% 0% / 0.69), -2px 2px 4px 12px hsl(0 0% 0% / 0.69);
  --shadow-lg: -2px 43px 25px 13px hsl(0 0% 0% / 0.69), -2px 4px 6px 12px hsl(0 0% 0% / 0.69);
  --shadow-xl: -2px 43px 25px 13px hsl(0 0% 0% / 0.69), -2px 8px 10px 12px hsl(0 0% 0% / 0.69);
  --shadow-2xl: -2px 43px 25px 13px hsl(0 0% 0% / 1.72);
}

.dark {
  --background: oklch(0.1677 0.0232 260.27);
  --foreground: oklch(1 0 0);
  --card: oklch(0.145 0.0203 244.33);
  --card-foreground: oklch(0.412 0.061 241.02);
  --popover: oklch(0.2897 0.0338 255.79);
  --popover-foreground: oklch(0.9392 0.0101 238.52);
  --primary: oklch(0.7661 0.0851 242.25);
  --primary-foreground: oklch(0.4713 0.1385 257.67);
  --secondary: oklch(0.6919 0.0832 243.75);
  --secondary-foreground: oklch(0.4477 0.1232 248.92);
  --muted: oklch(0.2018 0.0168 252.54);
  --muted-foreground: oklch(0.6604 0.0245 248.2);
  --accent: oklch(0.2797 0.043 259.71);
  --accent-foreground: oklch(0.7722 0.1273 242.28);
  --destructive: oklch(0.704 0.191 22.22);
  --destructive-foreground: oklch(0.985 0 0);
  --border: oklch(0.3299 0.0322 257.68);
  --input: oklch(0.3205 0.0336 253.94);
  --ring: oklch(0.5805 0.0297 251.82);
  --chart-1: oklch(0.81 0.1 252);
  --chart-2: oklch(0.62 0.19 260);
  --chart-3: oklch(0.55 0.22 263);
  --chart-4: oklch(0.49 0.22 264);
  --chart-5: oklch(0.42 0.18 266);
  --sidebar: oklch(0.2452 0.0305 256.86);
  --sidebar-foreground: oklch(0.9392 0.0101 238.52);
  --sidebar-primary: oklch(0.4887 0.2427 263.97);
  --sidebar-primary-foreground: oklch(0.9851 0 0);
  --sidebar-accent: oklch(0.3056 0.0334 255.78);
  --sidebar-accent-foreground: oklch(0.9392 0.0101 238.52);
  --sidebar-border: oklch(0.3053 0.0296 254.68);
  --sidebar-ring: oklch(0.5805 0.0297 251.82);
  --font-sans: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans', sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji';
  --font-serif: ui-serif, Georgia, Cambria, "Times New Roman", Times, serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  --radius: 0.625rem;
  --spacing: 0.25rem;
  --tracking-normal: 0em;
  --shadow-color: oklch(0 0 0);
  --shadow-opacity: 0.63;
  --shadow-blur: 11px;
  --shadow-spread: 0px;
  --shadow-offset-x: 0;
  --shadow-offset-y: 1px;
  --shadow-2xs: 0 1px 11px 0px hsl(0 0% 0% / 0.32);
  --shadow-xs: 0 1px 11px 0px hsl(0 0% 0% / 0.32);
  --shadow-sm: 0 1px 11px 0px hsl(0 0% 0% / 0.63), 0 1px 2px -1px hsl(0 0% 0% / 0.63);
  --shadow: 0 1px 11px 0px hsl(0 0% 0% / 0.63), 0 1px 2px -1px hsl(0 0% 0% / 0.63);
  --shadow-md: 0 1px 11px 0px hsl(0 0% 0% / 0.63), 0 2px 4px -1px hsl(0 0% 0% / 0.63);
  --shadow-lg: 0 1px 11px 0px hsl(0 0% 0% / 0.63), 0 4px 6px -1px hsl(0 0% 0% / 0.63);
  --shadow-xl: 0 1px 11px 0px hsl(0 0% 0% / 0.63), 0 8px 10px -1px hsl(0 0% 0% / 0.63);
  --shadow-2xl: 0 1px 11px 0px hsl(0 0% 0% / 1.57);
}

@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);

  --tracking-tighter: calc(var(--tracking-normal) - 0.05em);
  --tracking-tight: calc(var(--tracking-normal) - 0.025em);
  --tracking-normal: var(--tracking-normal);
  --tracking-wide: calc(var(--tracking-normal) + 0.025em);
  --tracking-wider: calc(var(--tracking-normal) + 0.05em);
  --tracking-widest: calc(var(--tracking-normal) + 0.1em);
}

@layer base {
  body {
    letter-spacing: var(--tracking-normal);
  }
}