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 #101221 is the color #211F10

The HSL model was used to determine the complementary color

Input Color

HEX #101221
RGB 16, 18, 33
CMYK 52%, 45%, 0%, 87%
HSL 232.94°, 34.69%, 9.61%

Complementary Color

HEX #211F10
RGB 33, 31, 16
CMYK 0%, 6%, 52%, 87%
HSL 52.94°, 34.69%, 9.61%

Complementary color scheme

#211F10

#122110

#10211F

#101221

#1F1021