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 #55FFFF is the color #FF5555

The HSL model was used to determine the complementary color

Input Color


HEX #55FFFF
RGB 85, 255, 255
CMYK 67%, 0%, 0%, 0%
HSL 180°, 100%, 66.67%

Complementary Color


HEX #FF5555
RGB 255, 85, 85
CMYK 0%, 67%, 67%, 0%
HSL 0°, 100%, 66.67%

Complementary color scheme

#FF5555
#FFFF55
#55FF55
#55FFFF
#5555FF