The hex color #3a6d3d is a dark color. The web-safe version is Hex
#336633. A complementary color is
#C592C2. The grayscale version is
#4C4C4C. A 20% lighter version of the original color is
#6DA070, and Hex
#073A0A is the 20% darker color. If the color is saturated by 10%, you get
#38703C. If the color is desaturated by 10%, the color
#3C6A3F is obtained.