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 #0C1215 is the color #150F0C

The HSL model was used to determine the complementary color

Input Color

HEX #0C1215
RGB 12, 18, 21
CMYK 43%, 14%, 0%, 92%
HSL 200°, 27.27%, 6.47%

Complementary Color

HEX #150F0C
RGB 21, 15, 12
CMYK 0%, 29%, 43%, 92%
HSL 20°, 27.27%, 6.47%

Complementary color scheme

#150F0C

#12150C

#0C150F

#0C1215

#0F0C15