The hex color #e6f4e2 is a light color. The web-safe version is Hex
#FFFFCC. A complementary color is
#190B1D. The grayscale version is
#E9E9E9. A 20% lighter version of the original color is
#FFFFFF, and Hex
#B3C1AF is the 20% darker color. If the color is saturated by 10%, you get
#E6F5E1. If the color is desaturated by 10%, the color
#E6F3E3 is obtained.