The hex color #e4fb6d is a light color. The web-safe version is Hex
#CCFF66. A complementary color is
#1B0492. The grayscale version is
#C4C4C4. A 20% lighter version of the original color is
#FFFFA0, and Hex
#B1C83A is the 20% darker color. If the color is saturated by 10%, you get
#E7FF64. If the color is desaturated by 10%, the color
#E1F676 is obtained.