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 #18DEFF is the color #FF3718

The HSL model was used to determine the complementary color

Input Color


HEX #18DEFF
RGB 24, 222, 255
CMYK 91%, 13%, 0%, 0%
HSL 188.57°, 100%, 54.71%

Complementary Color


HEX #FF3718
RGB 255, 55, 24
CMYK 0%, 78%, 91%, 0%
HSL 8.05°, 100%, 54.71%

Complementary color scheme

#FF3718
#E0FF18
#18FF37
#18E0FF
#3718FF