Red - RGB (255, 0, 0) - CMYK (0, 100, 100, 0)

#ff0000
255, 0, 0
100, 0, 0
0, 100, 100, 0
0°, 100%, 50%
0°, 100%, 100%

Color schemes that include Red

#0000ff #ff0000 #00ff00

Triadic Colors

#8000ff #ff0000 #80ff00 #00ffff

Square Colors

#004aff #ff0000 #00ff4a

Golden Ratio