The hex color #e4f04c is a light color. The web-safe version is Hex
#CCFF33. A complementary color is
#1B0FB3. The grayscale version is
#B5B5B5. A 20% lighter version of the original color is
#FFFF7F, and Hex
#B1BD19 is the 20% darker color. If the color is saturated by 10%, you get
#E9F641. If the color is desaturated by 10%, the color
#DFEA57 is obtained.