The hex color #a9ecfc is a light color. The web-safe version is Hex
#99FFFF. A complementary color is
#561303. The grayscale version is
#DBDBDB. A 20% lighter version of the original color is
#DCFFFF, and Hex
#76B9C9 is the 20% darker color. If the color is saturated by 10%, you get
#A4EEFF. If the color is desaturated by 10%, the color
#AEEAF9 is obtained.