The hex color #a8cc31 is a light color. The web-safe version is Hex
#99CC33. A complementary color is
#5733CE. The grayscale version is
#8C8C8C. A 20% lighter version of the original color is
#DBFF64, and Hex
#759900 is the 20% darker color. If the color is saturated by 10%, you get
#ABD228. If the color is desaturated by 10%, the color
#A5C63A is obtained.