The hex color #a7c4e5 is a light color. The web-safe version is Hex
#99CCCC. A complementary color is
#583B1A. The grayscale version is
#C5C5C5. A 20% lighter version of the original color is
#DAF7FF, and Hex
#7491B2 is the 20% darker color. If the color is saturated by 10%, you get
#A4C4E8. If the color is desaturated by 10%, the color
#AAC4E2 is obtained.