The hex color #a3b9fe is a light color. The web-safe version is Hex
#99CCFF. A complementary color is
#5C4601. The grayscale version is
#C9C9C9. A 20% lighter version of the original color is
#D6ECFF, and Hex
#7086CB is the 20% darker color. If the color is saturated by 10%, you get
#9FB7FF. If the color is desaturated by 10%, the color
#A7BBF9 is obtained.