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 #51787E is the color #7E5751

The HSL model was used to determine the complementary color

Input Color


HEX #51787E
RGB 81, 120, 126
CMYK 36%, 5%, 0%, 51%
HSL 188°, 21.74%, 40.59%

Complementary Color


HEX #7E5751
RGB 126, 87, 81
CMYK 0%, 31%, 36%, 51%
HSL 8°, 21.74%, 40.59%

Complementary color scheme

#7E5751
#787E51
#517E57
#51787E
#57517E