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 #21222A is the color #2A2921

The HSL model was used to determine the complementary color

Input Color


HEX #21222A
RGB 33, 34, 42
CMYK 21%, 19%, 0%, 84%
HSL 233.33°, 12%, 14.71%

Complementary Color


HEX #2A2921
RGB 42, 41, 33
CMYK 0%, 2%, 21%, 84%
HSL 53.33°, 12%, 14.71%

Complementary color scheme

#2A2921
#222A21
#212A29
#21222A
#29212A