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 #21B7AB is the color #B7212E

The HSL model was used to determine the complementary color

Input Color

HEX #21B7AB
RGB 33, 183, 171
CMYK 82%, 0%, 7%, 28%
HSL 175.2°, 69.44%, 42.35%

Complementary Color

HEX #B7212E
RGB 183, 33, 46
CMYK 0%, 82%, 75%, 28%
HSL 354.8°, 69.44%, 42.35%

Complementary color scheme

#B7212D

#B7AB21

#2EB721

#21B7AB

#212DB7