The hex color #a8fa02 is a light color. The web-safe version is Hex
#99FF00. A complementary color is
#5705FD. The grayscale version is
#8C8C8C. A 20% lighter version of the original color is
#DBFF35, and Hex
#75C700 is the 20% darker color. If the color is saturated by 10%, you get
#ABFF00. If the color is desaturated by 10%, the color
#A5EF10 is obtained.