The hex color #e3d143 is a light color. The web-safe version is Hex
#CCCC33. A complementary color is
#1C2EBC. The grayscale version is
#A8A8A8. A 20% lighter version of the original color is
#FFFF76, and Hex
#B09E10 is the 20% darker color. If the color is saturated by 10%, you get
#E9D539. If the color is desaturated by 10%, the color
#DDCD4D is obtained.