The hex color #a3b30d is a light color. The web-safe version is Hex
#99CC00. A complementary color is
#5C4CF2. The grayscale version is
#767676. A 20% lighter version of the original color is
#D6E640, and Hex
#708000 is the 20% darker color. If the color is saturated by 10%, you get
#A7B902. If the color is desaturated by 10%, the color
#9FAD18 is obtained.