The hex color #d3e5f5 is a light color. The web-safe version is Hex
#CCCCFF. A complementary color is
#2C1A0A. The grayscale version is
#E4E4E4. A 20% lighter version of the original color is
#FFFFFF, and Hex
#A0B2C2 is the 20% darker color. If the color is saturated by 10%, you get
#D1E5F7. If the color is desaturated by 10%, the color
#D5E5F3 is obtained.