The hex color #a9e02a is a light color. The web-safe version is Hex
#99CC33. A complementary color is
#561FD5. The grayscale version is
#919191. A 20% lighter version of the original color is
#DCFF5D, and Hex
#76AD00 is the 20% darker color. If the color is saturated by 10%, you get
#ABE820. If the color is desaturated by 10%, the color
#A7D834 is obtained.