The hex color #d3d5f5 is a light color. The web-safe version is Hex
#CCCCFF. A complementary color is
#2C2A0A. The grayscale version is
#DFDFDF. A 20% lighter version of the original color is
#FFFFFF, and Hex
#A0A2C2 is the 20% darker color. If the color is saturated by 10%, you get
#D2D4F7. If the color is desaturated by 10%, the color
#D4D6F3 is obtained.