The hex color #cfeb29 is a light color. The web-safe version is Hex
#CCFF33. A complementary color is
#3014D6. The grayscale version is
#A1A1A1. A 20% lighter version of the original color is
#FFFF5C, and Hex
#9CB800 is the 20% darker color. If the color is saturated by 10%, you get
#D4F21D. If the color is desaturated by 10%, the color
#CAE435 is obtained.