The hex color #648f1c is a dark color. The web-safe version is Hex
#669933. A complementary color is
#9B70E3. The grayscale version is
#5A5A5A. A 20% lighter version of the original color is
#97C24F, and Hex
#315C00 is the 20% darker color. If the color is saturated by 10%, you get
#659416. If the color is desaturated by 10%, the color
#638A22 is obtained.