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 #313D3D is the color #3D3131

The HSL model was used to determine the complementary color

Input Color

HEX #313D3D
RGB 49, 61, 61
CMYK 20%, 0%, 0%, 76%
HSL 180°, 10.91%, 21.57%

Complementary Color

HEX #3D3131
RGB 61, 49, 49
CMYK 0%, 20%, 20%, 76%
HSL 0°, 10.91%, 21.57%

Complementary color scheme

#3D3131

#3D3D31

#313D31

#313D3D

#31313D