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 #1B242A is the color #2A211B

The HSL model was used to determine the complementary color

Input Color


HEX #1B242A
RGB 27, 36, 42
CMYK 36%, 14%, 0%, 84%
HSL 204°, 21.74%, 13.53%

Complementary Color


HEX #2A211B
RGB 42, 33, 27
CMYK 0%, 21%, 36%, 84%
HSL 24°, 21.74%, 13.53%

Complementary color scheme

#2A211B
#242A1B
#1B2A21
#1B242A
#211B2A