Color Palette Generator

By the FastFreeTools Editorial Team · Last reviewed: May 2026 · See our Editorial Policy for methodology, sourcing, and disclaimers.

Create color palettes based on color theory harmonies. Complementary, analogous, triadic, and monochromatic schemes.

About this tool

Color theory is the science behind visually harmonious combinations. Our Color Palette Generator creates mathematically precise palettes based on five harmony rules: complementary, analogous, triadic, split-complementary, and monochromatic. Starting from any base color, the generator computes harmonious companions using HSL color space calculations.

How to use Color Palette Generator

Enter a base color via HEX or color picker.
Select a harmony type.
View the generated palette.
Click any swatch to copy its HEX value.

Tips & best practices

Complementary = max contrast (great for CTAs).
Analogous = natural and harmonious.
Monochromatic = elegant and professional.
Start with your brand's primary color.

Common use cases

Creating brand color schemes.
Designing UI themes.
Building presentation color palettes.
Choosing data visualization colors.

Privacy

This tool runs entirely in your browser. We do not upload, store, log, or process your input on any server. Open your browser's DevTools Network tab to verify — there is no outbound request with your data. See our Privacy Policy for details.

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