The hex color #a8d504 is a light color. The web-safe version is Hex
#99CC00. A complementary color is
#572AFB. The grayscale version is
#808080. A 20% lighter version of the original color is
#DBFF37, and Hex
#75A200 is the 20% darker color. If the color is saturated by 10%, you get
#ACDD00. If the color is desaturated by 10%, the color
#A4CD10 is obtained.