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 #1B4D4E is the color #4E1C1B

The HSL model was used to determine the complementary color

Input Color

HEX #1B4D4E
RGB 27, 77, 78
CMYK 65%, 1%, 0%, 69%
HSL 181.18°, 48.57%, 20.59%

Complementary Color

HEX #4E1C1B
RGB 78, 28, 27
CMYK 0%, 64%, 65%, 69%
HSL 1.18°, 48.57%, 20.59%

Complementary color scheme

#4E1C1B

#4D4E1B

#1B4E1C

#1B4D4E

#1C1B4E