The hex color #a8ef77 is a light color. The web-safe version is Hex
#99FF66. A complementary color is
#571088. The grayscale version is
#AFAFAF. A 20% lighter version of the original color is
#DBFFAA, and Hex
#75BC44 is the 20% darker color. If the color is saturated by 10%, you get
#A7F571. If the color is desaturated by 10%, the color
#A9E97D is obtained.