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 #003F40 is the color #400000

The HSL model was used to determine the complementary color

Input Color


HEX #003F40
RGB 0, 63, 64
CMYK 100%, 2%, 0%, 75%
HSL 180.94°, 100%, 12.55%

Complementary Color


HEX #400000
RGB 64, 0, 0
CMYK 0%, 100%, 100%, 75%
HSL 0°, 100%, 12.55%

Complementary color scheme

#400000
#404000
#004000
#004040
#000040