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 #21222E is the color #2E2D21

The HSL model was used to determine the complementary color

Input Color

HEX #21222E
RGB 33, 34, 46
CMYK 28%, 26%, 0%, 82%
HSL 235.38°, 16.46%, 15.49%

Complementary Color

HEX #2E2D21
RGB 46, 45, 33
CMYK 0%, 2%, 28%, 82%
HSL 55.38°, 16.46%, 15.49%

Complementary color scheme

#2E2D21

#222E21

#212E2D

#21222E

#2D212E