The hex color #a8f9b5 is a light color. The web-safe version is Hex
#99FFCC. A complementary color is
#57064A. The grayscale version is
#C7C7C7. A 20% lighter version of the original color is
#DBFFE8, and Hex
#75C682 is the 20% darker color. If the color is saturated by 10%, you get
#A5FEB3. If the color is desaturated by 10%, the color
#ABF4B7 is obtained.