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 #B21313 is the color #13B2B2

The HSL model was used to determine the complementary color

Input Color


HEX #B21313
RGB 178, 19, 19
CMYK 0%, 89%, 89%, 30%
HSL 0°, 80.71%, 38.63%

Complementary Color


HEX #13B2B2
RGB 19, 178, 178
CMYK 89%, 0%, 0%, 30%
HSL 180°, 80.71%, 38.63%

Complementary color scheme

#13B2B2
#1313B2
#B213B2
#B21313
#B2B213