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 #66A800 is the color #4000A8

The HSL model was used to determine the complementary color

Input Color


HEX #66A800
RGB 102, 168, 0
CMYK 39%, 0%, 100%, 34%
HSL 83.57°, 100%, 32.94%

Complementary Color


HEX #4000A8
RGB 64, 0, 168
CMYK 62%, 100%, 0%, 34%
HSL 262.86°, 100%, 32.94%

Complementary color scheme

#4000A8
#A80068
#A84000
#68A800
#00A840