The hex color #a8fc64 is a light color. The web-safe version is Hex
#99FF66. A complementary color is
#57039B. The grayscale version is
#ADADAD. A 20% lighter version of the original color is
#DBFF97, and Hex
#75C931 is the 20% darker color. If the color is saturated by 10%, you get
#A7FF5D. If the color is desaturated by 10%, the color
#A9F46B is obtained.