The hex color #3d6d2d is a dark color. The web-safe version is Hex
#336633. A complementary color is
#C292D2. The grayscale version is
#484848. A 20% lighter version of the original color is
#70A060, and Hex
#0A3A00 is the 20% darker color. If the color is saturated by 10%, you get
#3C712A. If the color is desaturated by 10%, the color
#3E6930 is obtained.