The hex color #d9d74b is a light color. The web-safe version is Hex
#CCCC33. A complementary color is
#2628B4. The grayscale version is
#A9A9A9. A 20% lighter version of the original color is
#FFFF7E, and Hex
#A6A418 is the 20% darker color. If the color is saturated by 10%, you get
#DEDC42. If the color is desaturated by 10%, the color
#D4D254 is obtained.