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 #343E40 is the color #403634

The HSL model was used to determine the complementary color

Input Color


HEX #343E40
RGB 52, 62, 64
CMYK 19%, 3%, 0%, 75%
HSL 190°, 10.34%, 22.75%

Complementary Color


HEX #403634
RGB 64, 54, 52
CMYK 0%, 16%, 19%, 75%
HSL 10°, 10.34%, 22.75%

Complementary color scheme

#403634
#3E4034
#344036
#343E40
#363440