The hex color #e2f3e5 is a light color. The web-safe version is Hex
#CCFFCC. A complementary color is
#1D0C1A. The grayscale version is
#E9E9E9. A 20% lighter version of the original color is
#FFFFFF, and Hex
#AFC0B2 is the 20% darker color. If the color is saturated by 10%, you get
#E1F4E5. If the color is desaturated by 10%, the color
#E3F2E5 is obtained.