How to determine complementary colors?
What are the different color models?

Determine Complementary Color

140 color names
216 web safe colors
2040 RAL colors
200 shades of gray

The complementary color of #CF0000 is the color #00CFCF

The HSL model was used to determine the complementary color

Input Color


HEX #CF0000
RGB 207, 0, 0
CMYK 0%, 100%, 100%, 19%
HSL 0°, 100%, 40.59%

Complementary Color


HEX #00CFCF
RGB 0, 207, 207
CMYK 100%, 0%, 0%, 19%
HSL 180°, 100%, 40.59%

Complementary color scheme

#00CFCF
#0000CF
#CF00CF
#CF0000
#CFCF00