The hex color #cfcd45 is a light color. The web-safe version is Hex
#CCCC33. A complementary color is
#3032BA. The grayscale version is
#A0A0A0. A 20% lighter version of the original color is
#FFFF78, and Hex
#9C9A12 is the 20% darker color. If the color is saturated by 10%, you get
#D4D13C. If the color is desaturated by 10%, the color
#CAC94E is obtained.