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 #51727A is the color #7A5951

The HSL model was used to determine the complementary color

Input Color

HEX #51727A
RGB 81, 114, 122
CMYK 34%, 7%, 0%, 52%
HSL 191.71°, 20.2%, 39.8%

Complementary Color

HEX #7A5951
RGB 122, 89, 81
CMYK 0%, 27%, 34%, 52%
HSL 11.71°, 20.2%, 39.8%

Complementary color scheme

#7A5951

#727A51

#517A59

#51727A

#59517A