Complementary Color Finder

Find the opposite color

Complementary colors sit directly across the wheel from each other and create maximum contrast — useful for a call-to-action that has to pop against your brand color, or a bold accent. This finder returns the exact complement of any color and previews the pair.

Seeing the two together tells you instantly whether the combination is striking or jarring, since true complements can be intense. Use it as a starting point for accent colors, then soften or shift as needed. Copy either hex to use it.

Accurate and private

Everything runs locally in your browser using standard web APIs — nothing is uploaded, logged, or stored on any server — so the tool works offline, responds instantly, and keeps whatever you paste in on your own device. That makes it safe to use even for confidential, client, or internal data you would never send to an unknown website.