The hex color #f3d9f3 is a light color. The web-safe version is Hex
#FFCCFF. A complementary color is
#0C260C. The grayscale version is
#EAEAEA. A 20% lighter version of the original color is
#FFFFFF, and Hex
#C0A6C0 is the 20% darker color. If the color is saturated by 10%, you get
#F4D7F4. If the color is desaturated by 10%, the color
#F2DBF2 is obtained.