The hex color #ddc110 is a light color. The web-safe version is Hex
#CCCC00. A complementary color is
#223EEF. The grayscale version is
#8F8F8F. A 20% lighter version of the original color is
#FFF443, and Hex
#AA8E00 is the 20% darker color. If the color is saturated by 10%, you get
#E5C603. If the color is desaturated by 10%, the color
#D5BC1D is obtained.