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Complementary Color Calculator

Compute the complementary color (hue + 180°) from RGB.

Input Data

Input Red R.
Input Green G.
Input Blue B.

Results

0
255
255
Complement = hue + 180°.

At a glance:Complementary Color Calculator: enter parameters to compute results; complements related calculators.

Formula

RGB→HSL; h' = (h + 180°) mod 360; HSL→RGB.

How to Use

  1. Enter R,G,B.
  2. It returns the complementary RGB.

Case Studies

Red (255,0,0) → cyan (0,255,255)

Red's complement is cyan.

FAQ

Complement of gray?

Achromatic gray has no hue, so its complement is itself.

Related Tools

References

Content review: Calculatorism Science Team. Formula and numeric tests verified; results for reference only.

Found a problem with the results?

If this calculator's result is wrong, or you have any question about the calculation logic, please let us know. You are viewing:Complementary Color Calculator（/color/complementary-color）。