The hex color #a9c9a3 is a light color. The web-safe version is Hex
#99CC99. A complementary color is
#56365C. The grayscale version is
#B2B2B2. A 20% lighter version of the original color is
#DCFCD6, and Hex
#769670 is the 20% darker color. If the color is saturated by 10%, you get
#A8CBA2. If the color is desaturated by 10%, the color
#AAC7A4 is obtained.