The hex color #a2d21e is a light color. The web-safe version is Hex
#99CC33. A complementary color is
#5D2DE1. The grayscale version is
#868686. A 20% lighter version of the original color is
#D5FF51, and Hex
#6F9F00 is the 20% darker color. If the color is saturated by 10%, you get
#A5DA14. If the color is desaturated by 10%, the color
#9FCA28 is obtained.