The hex color #cfd140 is a light color. The web-safe version is Hex
#CCCC33. A complementary color is
#302EBF. The grayscale version is
#A0A0A0. A 20% lighter version of the original color is
#FFFF73, and Hex
#9C9E0D is the 20% darker color. If the color is saturated by 10%, you get
#D4D636. If the color is desaturated by 10%, the color
#CACC4A is obtained.