The hex color #a4d8ed is a light color. The web-safe version is Hex
#99CCFF. A complementary color is
#5B2712. The grayscale version is
#CECECE. A 20% lighter version of the original color is
#D7FFFF, and Hex
#71A5BA is the 20% darker color. If the color is saturated by 10%, you get
#A0D9F0. If the color is desaturated by 10%, the color
#A8D7EA is obtained.