Web Tools
Color Palette Generator
Generate harmonious color palettes from any base color using color theory. Supports complementary, analogous, triadic, split-complementary, tetradic, and monochromatic harmonies. Runs entirely in your browser — your data never leaves your machine.
color palette design harmony hsl developer-tools
Published May 28, 2026
All interactive tools run entirely in your browser. Your data never leaves your device.
How It Works
Pick a base color using the color picker or enter a hex value, then select a color harmony type. The tool generates a palette based on HSL color theory, showing you the complementary, analogous, or other harmonious colors.
Features
- 6 harmony types: complementary, analogous, triadic, split-complementary, tetradic (square), monochromatic
- Visual color picker: native color input with hex text field
- HSL display: see the base color’s HSL values
- Large swatches: click any swatch to copy its hex code
- Copy all: copy the entire palette at once
- Color theory: palettes calculated using proper HSL color wheel math
- Private: runs entirely in the browser — no data transmitted
Use Cases
- Finding complementary colors for a website design
- Building a consistent color scheme for a brand
- Exploring color harmonies for UI components
- Generating accessible color combinations