The hex color #a8e9f4 is a light color. The web-safe version is Hex
#99FFFF. A complementary color is
#57160B. The grayscale version is
#D7D7D7. A 20% lighter version of the original color is
#DBFFFF, and Hex
#75B6C1 is the 20% darker color. If the color is saturated by 10%, you get
#A3EBF7. If the color is desaturated by 10%, the color
#ADE7F1 is obtained.