The hex color #a1a9ea is a light color. The web-safe version is Hex
#9999FF. A complementary color is
#5E5615. The grayscale version is
#BCBCBC. A 20% lighter version of the original color is
#D4DCFF, and Hex
#6E76B7 is the 20% darker color. If the color is saturated by 10%, you get
#9EA7EF. If the color is desaturated by 10%, the color
#A4ABE5 is obtained.