The hex color #e3ffd1 is a light color. The web-safe version is Hex
#CCFFCC. A complementary color is
#1C002E. The grayscale version is
#E6E6E6. A 20% lighter version of the original color is
#FFFFFF, and Hex
#B0CC9E is the 20% darker color. If the color is saturated by 10%, you get
#E3FFCF. If the color is desaturated by 10%, the color
#E3FDD3 is obtained.