The hex color #fedd3f is a light color. The web-safe version is Hex
#FFCC33. A complementary color is
#0122C0. The grayscale version is
#B3B3B3. A 20% lighter version of the original color is
#FFFF72, and Hex
#CBAA0C is the 20% darker color. If the color is saturated by 10%, you get
#FFE133. If the color is desaturated by 10%, the color
#F7D94B is obtained.