The hex color #e3f1f2 is a light color. The web-safe version is Hex
#CCFFFF. A complementary color is
#1C0E0D. The grayscale version is
#EDEDED. A 20% lighter version of the original color is
#FFFFFF, and Hex
#B0BEBF is the 20% darker color. If the color is saturated by 10%, you get
#E2F1F3. If the color is desaturated by 10%, the color
#E4F1F1 is obtained.