Color Palette Generator – Generate Color Online (Free Tool)
Free online Color Palette Generator tool to generate beautiful color palettes from a base color. Create harmonious color schemes including complementary and analogous colors.
Example Output
Five harmonious colours generated by rotating hue around the colour wheel and adjusting lightness — ready for use in UI, branding, or illustration.
#2563eb · #eb2563 · #63eb25 · #1e3a8a · #be123c
What is Color Palette Generator?
Generate a balanced, harmonious colour palette from any base colour using colour-theory rules (complementary, triadic, tetradic, analogous, monochromatic, split-complementary). Export as HEX, CSS custom properties, Tailwind config, or Figma design tokens — instantly drop into your design system.
Why use this tool?
- No API keys to manage and no rate limits to monitor
- 100% free with no hidden costs or daily limits
- Works offline after the first page load
- WCAG contrast checks calculated correctly for AA and AAA, both text and large text
- Outputs valid CSS, Tailwind, and design-tool color formats side-by-side
How to use
- Pick a base colour (or click "random")
- Choose harmony rule (complementary, triadic, analogous, etc.)
- Adjust palette size (3-10)
- Copy as HEX list, CSS variables, Tailwind config, or Figma tokens
Examples
Brand palette from a logo colour
Sample the brand blue from a logo and generate a 5-colour triadic palette for the rest of the site (primary, secondary, accent, neutral, danger).
Dark + light mode siblings
For each generated colour, the tool also gives you a darker and lighter variant — instant dark-mode pairs.
Tailwind theme.colors export
Export the palette as a `tailwind.config.js` snippet you can paste straight into the project.
Common use cases
- Building a brand colour system from one base colour
- Generating illustration / data-viz palettes
- Creating Tailwind / design-token configs
- Quick mood-board palettes for client presentations
- Accessibility-aware palette exploration (with contrast checks)
Troubleshooting
- Generated colours look muddy
- The base colour was already desaturated. Pick a more saturated base, or toggle "boost saturation" so derived colours stay vibrant.
- Some pairs fail WCAG contrast
- Run each pair through the Color Contrast Checker tool. Harmony ≠ accessibility — adjust lightness manually for critical text/background pairs.
- Triadic palette looks gaudy
- Triadic = 120° hue spacing — vivid by design. Try split-complementary or analogous for more subtle palettes.
Frequently Asked Questions
You can generate complementary (opposite colors), analogous (adjacent colors), triadic (3 evenly spaced), tetradic (4 evenly spaced), and split-complementary palettes based on your chosen base color.
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