jarvisbox

Complementary Color Finder

Find the complementary color (180° opposite on the color wheel) for any hex color.

100% client-side · no upload

How to use

  1. Type or paste a hex color code (e.g. #6366f1) into the input.
  2. Click Find Complementary — the tool rotates the hue by 180° on the color wheel.
  3. Copy the complementary hex or CSS value from the output.

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Frequently Asked Questions

What is a complementary color?
A complementary color is the color directly opposite on the color wheel — 180° away in hue. Complementary pairs create maximum contrast and visual vibrance when used together.
Does my color data leave my device?
No. All calculations run in JavaScript inside your browser. Nothing is sent to any server.
Does it work on mobile?
Yes. The tool is mobile-first and works on iPhone Safari and Android Chrome.

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