The hex color #fdc82b is a light color. The web-safe version is Hex
#FFCC33. A complementary color is
#0237D4. The grayscale version is
#A5A5A5. A 20% lighter version of the original color is
#FFFB5E, and Hex
#CA9500 is the 20% darker color. If the color is saturated by 10%, you get
#FFCB1F. If the color is desaturated by 10%, the color
#F4C537 is obtained.