The hex color #add9f7 is a light color. The web-safe version is Hex
#99CCFF. A complementary color is
#522608. The grayscale version is
#D4D4D4. A 20% lighter version of the original color is
#E0FFFF, and Hex
#7AA6C4 is the 20% darker color. If the color is saturated by 10%, you get
#A9D9FA. If the color is desaturated by 10%, the color
#B1D9F4 is obtained.