The hex color #a3fe08 is a light color. The web-safe version is Hex
#99FF00. A complementary color is
#5C01F7. The grayscale version is
#8E8E8E. A 20% lighter version of the original color is
#D6FF3B, and Hex
#70CB00 is the 20% darker color. If the color is saturated by 10%, you get
#A5FF00. If the color is desaturated by 10%, the color
#A1F315 is obtained.