The hex color #e9fff6 is a light color. The web-safe version is Hex
#FFFFFF. A complementary color is
#160009. The grayscale version is
#F5F5F5. A 20% lighter version of the original color is
#FFFFFF, and Hex
#B6CCC3 is the 20% darker color. If the color is saturated by 10%, you get
#E8FFF6. If the color is desaturated by 10%, the color
#EAFEF6 is obtained.