The hex color #e5efcf is a light color. The web-safe version is Hex
#CCFFCC. A complementary color is
#1A1030. The grayscale version is
#E1E1E1. A 20% lighter version of the original color is
#FFFFFF, and Hex
#B2BC9C is the 20% darker color. If the color is saturated by 10%, you get
#E5F0CD. If the color is desaturated by 10%, the color
#E5EED1 is obtained.