Color Palette Generator

Rapidly prototype theme colors for your next project. Generate accessible pairings and export directly to CSS or Tailwind.

Swatches

very light grayish white
#FAFAFA
rgb(250, 250, 250) · hsl(0, 0%, 98%)
very dark grayish black
#0A0A0A
rgb(10, 10, 10) · hsl(0, 0%, 4%)
18.97:1 vs background
muted blue
#64748b
rgb(100, 116, 139) · hsl(215, 16%, 47%)
4.56:1 vs background
vivid blue
#2563eb
rgb(37, 99, 235) · hsl(221, 83%, 53%)
4.95:1 vs background

Light Component Preview

High-fidelity Typography System

This is a demonstration of secondary body text. It utilizes lower contrast while maintaining accessibility standards for readability.

<div className="theme-accent"> Highlighting important metadata </div>

Export Configuration

Your Data Never Leaves Your Device

Every tool runs entirely in your browser. Nothing you type is uploaded, stored, or logged on our servers.

100% Client-Side

The Quick Theme Palette Generator lets you create accessible light and dark mode color palettes with real-time contrast validation. It uses the official WCAG 2.1 algorithm to ensure your primary, secondary, accent, and background colors meet key AA or AAA accessibility requirements.

You can adjust colors manually, randomize fully compliant palettes, preview them in an interactive UI, and export your final theme as CSS variables or JSON. The entire tool runs in your browser, making it fast, responsive, and ideal for designers and developers building modern, accessibility-focused interfaces.

FAQ

It builds a coordinated theme palette from a base color, giving you a set of related shades ready to use across a UI or design system.

No. The palette is generated client-side in your browser, so nothing you pick is uploaded.

Yes. The generated colors can be copied as values you can paste directly into CSS variables, design tokens, or code.

Starting from your base color, the tool produces harmonious tints and shades so the theme feels consistent without manual tuning.

Each swatch already shows its contrast ratio against that mode's background with a pass/fail badge (WCAG AA, 4.5:1). If you edit a color by hand, watch that badge — for a second custom pairing, use the Color Contrast Checker.