The hex color #ddfd0e is a light color. The web-safe version is Hex
#CCFF00. A complementary color is
#2202F1. The grayscale version is
#A3A3A3. A 20% lighter version of the original color is
#FFFF41, and Hex
#AACA00 is the 20% darker color. If the color is saturated by 10%, you get
#E3FF00. If the color is desaturated by 10%, the color
#D7F41D is obtained.