The hex color #84d8ed is a light color. The web-safe version is Hex
#99CCFF. A complementary color is
#7B2712. The grayscale version is
#C3C3C3. A 20% lighter version of the original color is
#B7FFFF, and Hex
#51A5BA is the 20% darker color. If the color is saturated by 10%, you get
#7EDAF1. If the color is desaturated by 10%, the color
#8AD6E9 is obtained.