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DataToolings

Color Palette Generator

Generate complementary, analogous, triadic, split-complementary, tetradic, and monochromatic color palettes from any base color. Free online color harmony tool.

Complementary

Two colors directly opposite on the color wheel — high contrast.

Analogous

Three colors adjacent on the wheel — harmonious and natural.

Triadic

Three colors evenly spaced 120° apart — vibrant and balanced.

Split-Complementary

Base color plus two colors adjacent to its complement — softer contrast.

Tetradic

Four colors forming a rectangle on the wheel — rich and complex.

Monochromatic

Shades and tints of a single hue — clean and elegant.

Click any swatch to copy its HEX value.

What Is a Color Palette Generator?

A color palette generator derives harmonious color schemes from a single base color using color theory rules. Different harmony types (complementary, analogous, triadic, etc.) produce palettes with distinct visual characteristics suited to different design contexts.

How to Use

  • Enter a HEX color (e.g. #3b82f6) or use the color picker
  • Six harmony types are generated simultaneously
  • Click any color swatch to copy its HEX value
  • Hover a swatch to see HEX and RGB values

Harmony Types

  • Complementary — opposite on the wheel, maximum contrast
  • Analogous — adjacent colors, natural and cohesive
  • Triadic — 120° apart, vibrant and balanced
  • Split-Complementary — softer alternative to complementary
  • Tetradic — four colors in a rectangle, complex and rich
  • Monochromatic — shades and tints of the same hue

FAQ

How are the harmonies calculated?

The input color is converted to HSL (hue–saturation–lightness). Harmonies are produced by rotating the hue by specific angles (e.g. 180° for complementary, 120° for triadic) while keeping saturation and lightness stable.

Which harmony is best for UI design?

Analogous palettes work well for calm, professional UIs. Complementary is great for call-to-action elements. Monochromatic suits minimal designs.

Can I enter an RGB or HSL color?

Currently HEX input only. Use the color picker to visually choose any color, which will automatically populate the HEX field.