The hex color #e9f2d3 is a light color. The web-safe version is Hex
#FFFFCC. A complementary color is
#160D2C. The grayscale version is
#E5E5E5. A 20% lighter version of the original color is
#FFFFFF, and Hex
#B6BFA0 is the 20% darker color. If the color is saturated by 10%, you get
#E9F3D1. If the color is desaturated by 10%, the color
#E9F1D5 is obtained.