The hex color #e3e5cf is a light color. The web-safe version is Hex
#CCCCCC. A complementary color is
#1C1A30. The grayscale version is
#DDDDDD. A 20% lighter version of the original color is
#FFFFFF, and Hex
#B0B29C is the 20% darker color. If the color is saturated by 10%, you get
#E4E6CE. If the color is desaturated by 10%, the color
#E2E4D0 is obtained.