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 #1D3540 is the color #40281D

The HSL model was used to determine the complementary color

Input Color


HEX #1D3540
RGB 29, 53, 64
CMYK 55%, 17%, 0%, 75%
HSL 198.86°, 37.63%, 18.24%

Complementary Color


HEX #40281D
RGB 64, 40, 29
CMYK 0%, 38%, 55%, 75%
HSL 18.86°, 37.63%, 18.24%

Complementary color scheme

#40281D
#36401D
#1D4028
#1D3640
#281D40