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 #181A18 is the color #1A181A

The HSL model was used to determine the complementary color

Input Color


HEX #181A18
RGB 24, 26, 24
CMYK 8%, 0%, 8%, 90%
HSL 120°, 4%, 9.8%

Complementary Color


HEX #1A181A
RGB 26, 24, 26
CMYK 0%, 8%, 0%, 90%
HSL 300°, 4%, 9.8%

Complementary color scheme

#1A181A
#1A1818
#1A1A18
#181A18
#181A1A