The hex color #729900 is a dark color. The web-safe version is Hex
#669900. A complementary color is
#8D66FF. The grayscale version is
#595959. A 20% lighter version of the original color is
#A5CC33, and Hex
#3F6600 is the 20% darker color. If the color is saturated by 10%, you get
#759F00. If the color is desaturated by 10%, the color
#709309 is obtained.