The hex color #e4e1c1 is a light color. The web-safe version is Hex
#CCCCCC. A complementary color is
#1B1E3E. The grayscale version is
#D7D7D7. A 20% lighter version of the original color is
#FFFFF4, and Hex
#B1AE8E is the 20% darker color. If the color is saturated by 10%, you get
#E5E2BF. If the color is desaturated by 10%, the color
#E3E0C3 is obtained.