The hex color #a7c7e3 is a light color. The web-safe version is Hex
#99CCCC. A complementary color is
#58381C. The grayscale version is
#C6C6C6. A 20% lighter version of the original color is
#DAFAFF, and Hex
#7494B0 is the 20% darker color. If the color is saturated by 10%, you get
#A4C7E6. If the color is desaturated by 10%, the color
#AAC7E0 is obtained.