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 #21272F is the color #2F2921

The HSL model was used to determine the complementary color

Input Color

HEX #21272F
RGB 33, 39, 47
CMYK 30%, 17%, 0%, 82%
HSL 214.29°, 17.5%, 15.69%

Complementary Color

HEX #2F2921
RGB 47, 41, 33
CMYK 0%, 13%, 30%, 82%
HSL 34.29°, 17.5%, 15.69%

Complementary color scheme

#2F2921

#272F21

#212F29

#21272F

#29212F