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Color Palette Generator

Generate complementary, analogous and triadic palettes from one colour.

CSS custom properties

Quick Tool Overview

The Color Palette Generator derives a full colour scheme from one colour you like, using classical colour-wheel relationships: complementary, analogous, triadic, tetradic, split complementary and monochromatic. Each harmony rotates the hue by a fixed amount while holding saturation and lightness steady, which is why the results feel like a set.

What it does
Generates harmonious colour palettes from a single base colour
You give it
One base colour and a harmony type
You get back
A palette of swatches with HEX values
Best for
Brand palettes, UI themes, slide decks and illustrations
Color Tools Free, unlimited use No sign-up Runs in your browser

About the Color Palette Generator

Start with one colour you like and the generator derives a full scheme from it using classical colour-wheel relationships: complementary, analogous, triadic, tetradic, split complementary and monochromatic.

Each harmony rotates the hue by a fixed amount while holding saturation and lightness steady, which is why the results feel like they belong together rather than merely sitting next to each other. Analogous schemes are calm and cohesive, complementary schemes are high-contrast and good for calls to action, and monochromatic ramps are the safest choice for interface hierarchy. Every swatch shows its HEX value and copies with one click.

Key features of the Color Palette Generator

Six colour harmonies

Complementary, analogous, triadic, tetradic, split complementary and monochromatic are all derived from the same base colour.

Mathematically related hues

Saturation and lightness are held steady while the hue rotates, which is what makes the colours belong together.

Guidance on when to use each

Analogous schemes read calm and cohesive, complementary schemes give high contrast for calls to action, and monochromatic ramps are safest for interface hierarchy.

HEX on every swatch

Each colour shows its value and copies with one click, ready for CSS or a design file.

Instant regeneration

Change the base colour or the harmony and the whole palette rebuilds immediately.

How to use the Color Palette Generator

  1. 1

    Set your base colour

    Pick a colour or paste a HEX value to anchor the palette.

  2. 2

    Choose a harmony

    Switch between complementary, analogous, triadic, tetradic, split complementary and monochromatic.

  3. 3

    Copy the palette

    Copy individual swatches, or take the whole palette as a list of HEX codes.

Frequently asked questions

Two colours sitting opposite each other on the colour wheel, 180 degrees apart. The contrast is strong, which makes it effective for accents and calls to action but tiring across large areas.

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