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 #808080 Grey is the color #7F7F7F

The RGB model was used to determine the complementary color

Input Color

NAME Grey
HEX #808080
RGB 128, 128, 128
CMYK 0%, 0%, 0%, 50%
HSL 0°, 0%, 50.2%

Complementary Color

HEX #7F7F7F
RGB 127, 127, 127
CMYK 0%, 0%, 0%, 50%
HSL 0°, 0%, 49.8%

Possible color scheme

#7F7F7F

#808080

#8080FF

#80FF80

#A6A6A6

#FF8080

#FFFF66