The hex color #fdfb3c is a light color. The web-safe version is Hex
#FFFF33. A complementary color is
#0204C3. The grayscale version is
#BCBCBC. A 20% lighter version of the original color is
#FFFF6F, and Hex
#CAC809 is the 20% darker color. If the color is saturated by 10%, you get
#FFFF2F. If the color is desaturated by 10%, the color
#F7F549 is obtained.