The hex color #a1b9f4 is a light color. The web-safe version is Hex
#99CCFF. A complementary color is
#5E460B. The grayscale version is
#C5C5C5. A 20% lighter version of the original color is
#D4ECFF, and Hex
#6E86C1 is the 20% darker color. If the color is saturated by 10%, you get
#9DB8F9. If the color is desaturated by 10%, the color
#A5BAEF is obtained.