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 #21BDB0 is the color #BD212E

The HSL model was used to determine the complementary color

Input Color


HEX #21BDB0
RGB 33, 189, 176
CMYK 83%, 0%, 7%, 26%
HSL 175°, 70.27%, 43.53%

Complementary Color


HEX #BD212E
RGB 189, 33, 46
CMYK 0%, 83%, 76%, 26%
HSL 355°, 70.27%, 43.53%

Complementary color scheme

#BD212E
#BDB021
#2EBD21
#21BDB0
#212EBD