The hex color #5f8b2c is a dark color. The web-safe version is Hex
#669933. A complementary color is
#A074D3. The grayscale version is
#5D5D5D. A 20% lighter version of the original color is
#92BE5F, and Hex
#2C5800 is the 20% darker color. If the color is saturated by 10%, you get
#5F9027. If the color is desaturated by 10%, the color
#5F8631 is obtained.