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.

Complementary Color Finder — Opposite Color on the Wheel

Complementary Color Finder

Pick any color to instantly find its complementary — the color 180° opposite on the color wheel.

100% client-side · no upload

HEX color

Input color

#6366f1
rgb(99, 102, 241)

Complementary (180°)

#f1ee6b
rgb(241, 238, 107)

How to use

Click the color swatch or type a hex code.
The complementary color (hue + 180°) is shown on the right.
Click Copy hex to copy the complementary color code.

Related color tools

Analogous Colors Generator — similar hues side by side
Triadic Colors Generator — three evenly-spaced hues
Tints & Shades Generator — lighter and darker variants

常见问题

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.