The hex color #83721a is a dark color. The web-safe version is Hex
#996633. A complementary color is
#7C8DE5. The grayscale version is
#5A5A5A. A 20% lighter version of the original color is
#B6A54D, and Hex
#503F00 is the 20% darker color. If the color is saturated by 10%, you get
#877414. If the color is desaturated by 10%, the color
#7F7020 is obtained.