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Color Palette Generator (from Any Color)

Generate harmonious color palettes from any seed color — analogous, complementary, triadic and more. Copy as CSS.

100% free No sign-up Private · runs in your browser

How to use the free online color palette generator

Choose or paste a seed color.
Pick a harmony type (analogous, complementary…).
Lock colors you like.
Copy colors individually or as CSS variables.

About this tool

Generate beautiful, harmonious color palettes from any seed color — analogous, complementary, triadic, monochromatic and more. See each color as HEX, RGB and HSL, copy the whole palette as CSS variables in one click, and lock a color while regenerating the rest. Perfect for branding, UI design and data-viz.

Key features

5 harmony types
Lock any color
Copy as CSS variables
HEX / RGB / HSL output

Privacy first: every calculation and generation runs 100% locally in your web browser using the Web Crypto API. Your input never touches a server — nothing is stored, logged or sold.

Read the guide

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HEX vs RGB vs HSL: color codes for developers

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Frequently asked questions

A color harmony places colors at fixed relationships on the color wheel: complementary (opposite), analogous (adjacent), triadic (every 120°), split-complementary and monochromatic (one hue, varied lightness).

Pick a seed color (or generate a random one), choose a harmony, then copy any color as HEX, RGB or HSL — or copy the whole palette as CSS variables for your stylesheet.

Yes — lock a color and regenerate; locked colors stay fixed while the rest reshuffle around them.