The hex color #55973c is a dark color. The web-safe version is Hex
#669933. A complementary color is
#AA68C3. The grayscale version is
#636363. A 20% lighter version of the original color is
#88CA6F, and Hex
#226409 is the 20% darker color. If the color is saturated by 10%, you get
#549C38. If the color is desaturated by 10%, the color
#569240 is obtained.