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 #A40000 is the color #00A4A4

The HSL model was used to determine the complementary color

Input Color


HEX #A40000
RGB 164, 0, 0
CMYK 0%, 100%, 100%, 36%
HSL 0°, 100%, 32.16%

Complementary Color


HEX #00A4A4
RGB 0, 164, 164
CMYK 100%, 0%, 0%, 36%
HSL 180°, 100%, 32.16%

Complementary color scheme

#00A4A4
#0000A4
#A400A4
#A40000
#A4A400