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 #1B2140 is the color #403A1B

The HSL model was used to determine the complementary color

Input Color


HEX #1B2140
RGB 27, 33, 64
CMYK 58%, 48%, 0%, 75%
HSL 230.27°, 40.66%, 17.84%

Complementary Color


HEX #403A1B
RGB 64, 58, 27
CMYK 0%, 9%, 58%, 75%
HSL 50.27°, 40.66%, 17.84%

Complementary color scheme

#403A1B
#21401B
#1B403A
#1B2140
#3A1B40