The hex color #e3f56d is a light color. The web-safe version is Hex
#CCFF66. A complementary color is
#1C0A92. The grayscale version is
#C2C2C2. A 20% lighter version of the original color is
#FFFFA0, and Hex
#B0C23A is the 20% darker color. If the color is saturated by 10%, you get
#E6FA65. If the color is desaturated by 10%, the color
#E0F075 is obtained.