The hex color #a3ea23 is a light color. The web-safe version is Hex
#99FF33. A complementary color is
#5C15DC. The grayscale version is
#909090. A 20% lighter version of the original color is
#D6FF56, and Hex
#70B700 is the 20% darker color. If the color is saturated by 10%, you get
#A5F318. If the color is desaturated by 10%, the color
#A1E12E is obtained.