The hex color #c7e8ef is a light color. The web-safe version is Hex
#CCFFFF. A complementary color is
#381710. The grayscale version is
#DFDFDF. A 20% lighter version of the original color is
#FAFFFF, and Hex
#94B5BC is the 20% darker color. If the color is saturated by 10%, you get
#C5E9F1. If the color is desaturated by 10%, the color
#C9E7ED is obtained.