#990000 - RGB (153, 0, 0) - CMYK (0, 100, 100, 40)

#990000
153, 0, 0
60, 0, 0
0, 100, 100, 40
0°, 100%, 30%
0°, 100%, 60%

Color schemes that include #990000

#000099 #990000 #009900

Triadic Colors

#4c0099 #990000 #4d9900 #009999

Square Colors

#002d99 #990000 #00992d

Golden Ratio