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 #1B4851 is the color #51241B

The HSL model was used to determine the complementary color

Input Color

HEX #1B4851
RGB 27, 72, 81
CMYK 67%, 11%, 0%, 68%
HSL 190°, 50%, 21.18%

Complementary Color

HEX #51241B
RGB 81, 36, 27
CMYK 0%, 56%, 67%, 68%
HSL 10°, 50%, 21.18%

Complementary color scheme

#51241B

#48511B

#1B5124

#1B4851

#241B51