The hex color #cfdc59 is a light color. The web-safe version is Hex
#CCCC66. A complementary color is
#3023A6. The grayscale version is
#ACACAC. A 20% lighter version of the original color is
#FFFF8C, and Hex
#9CA926 is the 20% darker color. If the color is saturated by 10%, you get
#D3E151. If the color is desaturated by 10%, the color
#CCD761 is obtained.