The hex color #a0c03e is a light color. The web-safe version is Hex
#99CC33. A complementary color is
#5F3FC1. The grayscale version is
#8A8A8A. A 20% lighter version of the original color is
#D3F371, and Hex
#6D8D0B is the 20% darker color. If the color is saturated by 10%, you get
#A2C536. If the color is desaturated by 10%, the color
#9EBB46 is obtained.