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Blue Shadcn Theme

Pure blue theme with professional trust for shadcn/ui. Classic blue design with reliable corporate appeal. TypeScript ready.

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Blue Shadcn Theme

Blue is the most trusted color in interface design—it's the color of reliability, professionalism, and calm authority. This theme leverages that psychological foundation to create interfaces that feel both trustworthy and modern, with the kind of classic blue appeal that works across industries and user demographics.

Perfect for corporate applications, financial platforms, healthcare systems, or any React project where trust and reliability matter more than creative flair. The balanced blue creates environments that feel both professional and approachable.

Installation

npx shadcn@latest add https://www.shadcn.io/registry/blue.json
npx shadcn@latest add https://www.shadcn.io/registry/blue.json
pnpm dlx shadcn@latest add https://www.shadcn.io/registry/blue.json
bunx shadcn@latest add https://www.shadcn.io/registry/blue.json

Original theme by tweakcn.com

CSS Variables

Copy and paste the following CSS variables into your global CSS file:

:root {
  --background: oklch(1 0 0);
  --foreground: oklch(0.141 0.005 285.823);
  --card: oklch(1 0 0);
  --card-foreground: oklch(0.141 0.005 285.823);
  --popover: oklch(1 0 0);
  --popover-foreground: oklch(0.141 0.005 285.823);
  --primary: oklch(0.623 0.214 259.815);
  --primary-foreground: oklch(0.97 0.014 254.604);
  --secondary: oklch(0.967 0.001 286.375);
  --secondary-foreground: oklch(0.21 0.006 285.885);
  --muted: oklch(0.967 0.001 286.375);
  --muted-foreground: oklch(0.552 0.016 285.938);
  --accent: oklch(0.967 0.001 286.375);
  --accent-foreground: oklch(0.21 0.006 285.885);
  --destructive: oklch(0.577 0.245 27.325);
  --border: oklch(0.92 0.004 286.32);
  --input: oklch(0.92 0.004 286.32);
  --ring: oklch(0.623 0.214 259.815);
  --chart-1: oklch(0.646 0.222 41.116);
  --chart-2: oklch(0.6 0.118 184.704);
  --chart-3: oklch(0.398 0.07 227.392);
  --chart-4: oklch(0.828 0.189 84.429);
  --chart-5: oklch(0.769 0.188 70.08);
  --sidebar: oklch(0.985 0 0);
  --sidebar-foreground: oklch(0.141 0.005 285.823);
  --sidebar-primary: oklch(0.623 0.214 259.815);
  --sidebar-primary-foreground: oklch(0.97 0.014 254.604);
  --sidebar-accent: oklch(0.967 0.001 286.375);
  --sidebar-accent-foreground: oklch(0.21 0.006 285.885);
  --sidebar-border: oklch(0.92 0.004 286.32);
  --sidebar-ring: oklch(0.623 0.214 259.815);
  --destructive-foreground: oklch(1.0000 0 0);
  --font-sans: Inter, sans-serif;
  --font-serif: Lora, serif;
  --font-mono: JetBrains Mono, monospace;
  --radius: 0.65rem;
  --shadow-2xs: 0px 4px 8px -1px hsl(0 0% 0% / 0.05);
  --shadow-xs: 0px 4px 8px -1px hsl(0 0% 0% / 0.05);
  --shadow-sm: 0px 4px 8px -1px hsl(0 0% 0% / 0.10), 0px 1px 2px -2px hsl(0 0% 0% / 0.10);
  --shadow: 0px 4px 8px -1px hsl(0 0% 0% / 0.10), 0px 1px 2px -2px hsl(0 0% 0% / 0.10);
  --shadow-md: 0px 4px 8px -1px hsl(0 0% 0% / 0.10), 0px 2px 4px -2px hsl(0 0% 0% / 0.10);
  --shadow-lg: 0px 4px 8px -1px hsl(0 0% 0% / 0.10), 0px 4px 6px -2px hsl(0 0% 0% / 0.10);
  --shadow-xl: 0px 4px 8px -1px hsl(0 0% 0% / 0.10), 0px 8px 10px -2px hsl(0 0% 0% / 0.10);
  --shadow-2xl: 0px 4px 8px -1px hsl(0 0% 0% / 0.25);
  --tracking-normal: 0em;
  --spacing: 0.25rem;
}

.dark {
  --background: oklch(0.141 0.005 285.823);
  --foreground: oklch(0.985 0 0);
  --card: oklch(0.21 0.006 285.885);
  --card-foreground: oklch(0.985 0 0);
  --popover: oklch(0.21 0.006 285.885);
  --popover-foreground: oklch(0.985 0 0);
  --primary: oklch(0.546 0.245 262.881);
  --primary-foreground: oklch(0.379 0.146 265.522);
  --secondary: oklch(0.274 0.006 286.033);
  --secondary-foreground: oklch(0.985 0 0);
  --muted: oklch(0.274 0.006 286.033);
  --muted-foreground: oklch(0.705 0.015 286.067);
  --accent: oklch(0.274 0.006 286.033);
  --accent-foreground: oklch(0.985 0 0);
  --destructive: oklch(0.704 0.191 22.216);
  --border: oklch(1 0 0 / 10%);
  --input: oklch(1 0 0 / 15%);
  --ring: oklch(0.488 0.243 264.376);
  --chart-1: oklch(0.488 0.243 264.376);
  --chart-2: oklch(0.696 0.17 162.48);
  --chart-3: oklch(0.769 0.188 70.08);
  --chart-4: oklch(0.627 0.265 303.9);
  --chart-5: oklch(0.645 0.246 16.439);
  --sidebar: oklch(0.21 0.006 285.885);
  --sidebar-foreground: oklch(0.985 0 0);
  --sidebar-primary: oklch(0.546 0.245 262.881);
  --sidebar-primary-foreground: oklch(0.379 0.146 265.522);
  --sidebar-accent: oklch(0.274 0.006 286.033);
  --sidebar-accent-foreground: oklch(0.985 0 0);
  --sidebar-border: oklch(1 0 0 / 10%);
  --sidebar-ring: oklch(0.488 0.243 264.376);
  --destructive-foreground: oklch(1.0000 0 0);
  --font-sans: Inter, sans-serif;
  --font-serif: Lora, serif;
  --font-mono: JetBrains Mono, monospace;
  --radius: 0.65rem;
  --shadow-2xs: 0px 4px 8px -1px hsl(0 0% 0% / 0.05);
  --shadow-xs: 0px 4px 8px -1px hsl(0 0% 0% / 0.05);
  --shadow-sm: 0px 4px 8px -1px hsl(0 0% 0% / 0.10), 0px 1px 2px -2px hsl(0 0% 0% / 0.10);
  --shadow: 0px 4px 8px -1px hsl(0 0% 0% / 0.10), 0px 1px 2px -2px hsl(0 0% 0% / 0.10);
  --shadow-md: 0px 4px 8px -1px hsl(0 0% 0% / 0.10), 0px 2px 4px -2px hsl(0 0% 0% / 0.10);
  --shadow-lg: 0px 4px 8px -1px hsl(0 0% 0% / 0.10), 0px 4px 6px -2px hsl(0 0% 0% / 0.10);
  --shadow-xl: 0px 4px 8px -1px hsl(0 0% 0% / 0.10), 0px 8px 10px -2px hsl(0 0% 0% / 0.10);
  --shadow-2xl: 0px 4px 8px -1px 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-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);
  --color-destructive-foreground: var(--destructive-foreground);

  --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);
}

Why this theme works

Blue has been the gold standard for trustworthy interfaces since the early days of the web. This theme uses that proven foundation to create interfaces that feel both reliable and contemporary, with the kind of classic appeal that works across cultures and generations.

Most blue themes either go too corporate and feel sterile, or too vibrant and lose that professional edge. This blue hits the perfect balance—trustworthy enough for financial applications, modern enough for tech platforms.

Dark mode maintains that professional reliability while adding sophistication. The blue becomes more elegant against dark backgrounds, creating interfaces that feel both authoritative and approachable.

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FAQ