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 #405151 is the color #514040

The HSL model was used to determine the complementary color

Input Color


HEX #405151
RGB 64, 81, 81
CMYK 21%, 0%, 0%, 68%
HSL 180°, 11.72%, 28.43%

Complementary Color


HEX #514040
RGB 81, 64, 64
CMYK 0%, 21%, 21%, 68%
HSL 0°, 11.72%, 28.43%

Complementary color scheme

#514040
#515140
#405140
#405151
#404051