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 #121D8A is the color #8A7E12

The HSL model was used to determine the complementary color

Input Color


HEX #121D8A
RGB 18, 29, 138
CMYK 87%, 79%, 0%, 46%
HSL 234.5°, 76.92%, 30.59%

Complementary Color


HEX #8A7E12
RGB 138, 126, 18
CMYK 0%, 9%, 87%, 46%
HSL 54°, 76.92%, 30.59%

Complementary color scheme

#8A7E12
#1E8A12
#128A7E
#121E8A
#7E128A