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 #121428 is the color #282612

The HSL model was used to determine the complementary color

Input Color

HEX #121428
RGB 18, 20, 40
CMYK 55%, 50%, 0%, 84%
HSL 234.55°, 37.93%, 11.37%

Complementary Color

HEX #282612
RGB 40, 38, 18
CMYK 0%, 5%, 55%, 84%
HSL 54.55°, 37.93%, 11.37%

Complementary color scheme

#282612

#142812

#122826

#121428

#261228