The hex color #a3c4ed is a light color. The web-safe version is Hex
#99CCFF. A complementary color is
#5C3B12. The grayscale version is
#C7C7C7. A 20% lighter version of the original color is
#D6F7FF, and Hex
#7091BA is the 20% darker color. If the color is saturated by 10%, you get
#9FC4F1. If the color is desaturated by 10%, the color
#A7C4E9 is obtained.