The hex color #a3f54f is a light color. The web-safe version is Hex
#99FF66. A complementary color is
#5C0AB0. The grayscale version is
#A2A2A2. A 20% lighter version of the original color is
#D6FF82, and Hex
#70C21C is the 20% darker color. If the color is saturated by 10%, you get
#A3FD47. If the color is desaturated by 10%, the color
#A3ED57 is obtained.