The hex color #f4f3e4 is a light color. The web-safe version is Hex
#FFFFCC. A complementary color is
#0B0C1B. The grayscale version is
#EEEEEE. A 20% lighter version of the original color is
#FFFFFF, and Hex
#C1C0B1 is the 20% darker color. If the color is saturated by 10%, you get
#F5F3E3. If the color is desaturated by 10%, the color
#F3F3E5 is obtained.