The hex color #e6f3d6 is a light color. The web-safe version is Hex
#FFFFCC. A complementary color is
#190C29. The grayscale version is
#E5E5E5. A 20% lighter version of the original color is
#FFFFFF, and Hex
#B3C0A3 is the 20% darker color. If the color is saturated by 10%, you get
#E6F4D5. If the color is desaturated by 10%, the color
#E6F2D8 is obtained.