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 #121655 is the color #555112

The HSL model was used to determine the complementary color

Input Color

HEX #121655
RGB 18, 22, 85
CMYK 79%, 74%, 0%, 67%
HSL 236.42°, 65.05%, 20.2%

Complementary Color

HEX #555112
RGB 85, 81, 18
CMYK 0%, 5%, 79%, 67%
HSL 56.42°, 65.05%, 20.2%

Complementary color scheme

#555112

#165512

#125551

#121655

#511255