The hex color #a8a99a is a light color. The web-safe version is Hex
#999999. A complementary color is
#575665. The grayscale version is
#A4A4A4. A 20% lighter version of the original color is
#DBDCCD, and Hex
#757667 is the 20% darker color. If the color is saturated by 10%, you get
#A8AA99. If the color is desaturated by 10%, the color
#A8A89B is obtained.