The hex color #d3d3f8 is a light color. The web-safe version is Hex
#CCCCFF. A complementary color is
#2C2C07. The grayscale version is
#DFDFDF. A 20% lighter version of the original color is
#FFFFFF, and Hex
#A0A0C5 is the 20% darker color. If the color is saturated by 10%, you get
#D2D2FA. If the color is desaturated by 10%, the color
#D4D4F6 is obtained.