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AppBoya

IMAGE & COLOR

Color Palette Generator

Keep one Main, Sub, or Accent color fixed and compare 12 distinct three-color palettes.

Main leads the design, Sub supports it, and Accent highlights a small number of actions or details.
Enter #RGB or #RRGGBB. The selected role and normalized color stay unchanged.

Choose a role and HEX color, then generate palettes.

What this tool does

It keeps one specified Main, Sub, or Accent color exact and generates the other two colors in 12 harmony, mood, and practical patterns.

How to use it

  1. Choose which color role must stay fixed.
  2. Enter a HEX color or use the color picker, then generate palettes.
  3. Compare the previews and contrast values, then copy one HEX value or the full palette.

Generation and contrast details

Generated colors use deterministic OKLCH adjustments and are mapped into opaque sRGB. WCAG 2.2 text contrast uses unrounded sRGB relative luminance; normal AA requires 4.5:1 and large-text AA requires 3:1.

Limits and privacy

Generated palettes are suggestions, not a guarantee of brand fit or complete WCAG conformance. The check covers only black or white text on each solid color, not component states or contrast between the three palette colors. No data is sent or stored.

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