Design Tools

Color Harmonizer — Classic Harmony Rules

Pick a base color and generate schemes with complementary, analogous, triadic, tetradic, split-complementary, or monochromatic rules. Preview UI usage and export CSS variables for brand and component work.

PaletteColorHarmony

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Quick actions

Copy this tool URL or open the system share sheet on a supported device.

Use cases

  • Pick a harmony rule and ship a starter palette
  • Derive primary and secondary button colors
  • Export CSS variables into a theme

How to use

  1. Choose or enter a base color
  2. Select a harmony rule
  3. Click swatches to copy colors, or copy the CSS variables

Example input and output

Base

#3b82f6 (complementary)

Complement

#f6993b

FAQ

Which rules are included?

Complementary, analogous, triadic, tetradic, split-complementary, and monochromatic—six rules total.

How is this different from a palette generator?

This expands one base color through fixed color-theory structures. Palette generators lean more on random exploration and lock-and-iterate workflows.

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