The hex color #a0e30e is a light color. The web-safe version is Hex
#99CC00. A complementary color is
#5F1CF1. The grayscale version is
#868686. A 20% lighter version of the original color is
#D3FF41, and Hex
#6DB000 is the 20% darker color. If the color is saturated by 10%, you get
#A3EC02. If the color is desaturated by 10%, the color
#9DDA1A is obtained.