The hex color #ACEFF9 is a light color. The web-safe version is Hex
#99FFFF. A complementary color is
#531006. The grayscale version is
#DCDCDC. A 20% lighter version of the original color is
#DFFFFF, and Hex
#79BCC6 is the 20% darker color. If the color is saturated by 10%, you get
#A7F1FC. If the color is desaturated by 10%, the color
#B1EDF6 is obtained.