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 #21BDB3 is the color #BD212B

The HSL model was used to determine the complementary color

Input Color

HEX #21BDB3
RGB 33, 189, 179
CMYK 83%, 0%, 5%, 26%
HSL 176.15°, 70.27%, 43.53%

Complementary Color

HEX #BD212B
RGB 189, 33, 43
CMYK 0%, 83%, 77%, 26%
HSL 356.15°, 70.27%, 43.53%

Complementary color scheme

#BD212B

#BDB321

#2BBD21

#21BDB3

#212BBD