The hex color #a8e711 is a light color. The web-safe version is Hex
#99FF00. A complementary color is
#5718EE. The grayscale version is
#8B8B8B. A 20% lighter version of the original color is
#DBFF44, and Hex
#75B400 is the 20% darker color. If the color is saturated by 10%, you get
#ABF005. If the color is desaturated by 10%, the color
#A5DE1D is obtained.