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Complementary Color Generator

Find complementary and split-complementary colors.

Base
Complementary
Split −150°
Split +210°

What Is a Complementary Color Generator?

The Complementary Color Generator finds the exact opposite color on the color wheel, plus the two split-complementary neighbors that add depth without the harsh clash of a pure complement. Complementary pairs create strong visual tension and are a cornerstone of color theory for logos, call-to-actions, and accents. All conversions happen instantly in your browser.

How to Use This Complementary Color Generator

  1. 1
    Choose a base color.
  2. 2
    Review the complementary color directly opposite it on the wheel, plus the split alternatives.
  3. 3
    Copy the hex codes or the full combination string into your design project.

Frequently Asked Questions

On the traditional color wheel (used by HSL and most design tools), a complementary color sits exactly 180 degrees opposite a given color — red and cyan, green and magenta, blue and yellow.
Split-complementary uses the two colors adjacent to the complement, giving the contrasting energy of a complementary scheme while reducing visual harshness and creating more harmony.
Use them to make elements pop — for example, a call-to-action button in a complementary hue draws the eye because it contrasts strongly with the surrounding palette.

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