The hex color #a3a30e is a light color. The web-safe version is Hex
#999900. A complementary color is
#5C5CF1. The grayscale version is
#717171. A 20% lighter version of the original color is
#D6D641, and Hex
#707000 is the 20% darker color. If the color is saturated by 10%, you get
#A8A804. If the color is desaturated by 10%, the color
#9E9E18 is obtained.