The hex color #a3ea56 is a light color. The web-safe version is Hex
#99FF66. A complementary color is
#5C15A9. The grayscale version is
#A1A1A1. A 20% lighter version of the original color is
#D6FF89, and Hex
#70B723 is the 20% darker color. If the color is saturated by 10%, you get
#A3F14F. If the color is desaturated by 10%, the color
#A3E35E is obtained.