The hex color #a4fa3d is a light color. The web-safe version is Hex
#99FF33. A complementary color is
#5B05C2. The grayscale version is
#9E9E9E. A 20% lighter version of the original color is
#D7FF70, and Hex
#71C70A is the 20% darker color. If the color is saturated by 10%, you get
#A5FF33. If the color is desaturated by 10%, the color
#A3F147 is obtained.