The hex color #e3e33d is a light color. The web-safe version is Hex
#CCCC33. A complementary color is
#1C1CC2. The grayscale version is
#ACACAC. A 20% lighter version of the original color is
#FFFF70, and Hex
#B0B00A is the 20% darker color. If the color is saturated by 10%, you get
#E9E932. If the color is desaturated by 10%, the color
#DDDD48 is obtained.