The hex color #a5e20f is a light color. The web-safe version is Hex
#99CC00. A complementary color is
#5A1DF0. The grayscale version is
#878787. A 20% lighter version of the original color is
#D8FF42, and Hex
#72AF00 is the 20% darker color. If the color is saturated by 10%, you get
#A8EB03. If the color is desaturated by 10%, the color
#A2D91B is obtained.