The hex color #e3f2ff is a light color. The web-safe version is Hex
#CCFFFF. A complementary color is
#1C0D00. The grayscale version is
#F1F1F1. A 20% lighter version of the original color is
#FFFFFF, and Hex
#B0BFCC is the 20% darker color. If the color is saturated by 10%, you get
#E2F2FF. If the color is desaturated by 10%, the color
#E4F2FE is obtained.