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 #1A211D is the color #211A1E

The HSL model was used to determine the complementary color

Input Color

HEX #1A211D
RGB 26, 33, 29
CMYK 21%, 0%, 12%, 87%
HSL 145.71°, 11.86%, 11.57%

Complementary Color

HEX #211A1E
RGB 33, 26, 30
CMYK 0%, 21%, 9%, 87%
HSL 325.71°, 11.86%, 11.57%

Complementary color scheme

#211A1E

#211D1A

#1E211A

#1A211D

#1A1E21