The hex color #e3f2df is a light color. The web-safe version is Hex
#CCFFCC. A complementary color is
#1C0D20. The grayscale version is
#E7E7E7. A 20% lighter version of the original color is
#FFFFFF, and Hex
#B0BFAC is the 20% darker color. If the color is saturated by 10%, you get
#E3F3DE. If the color is desaturated by 10%, the color
#E3F1E0 is obtained.