The hex color #3E7A2B is a dark color. The web-safe version is Hex
#336633. A complementary color is
#C185D4. The grayscale version is
#4C4C4C. A 20% lighter version of the original color is
#71AD5E, and Hex
#0B4700 is the 20% darker color. If the color is saturated by 10%, you get
#3D7F28. If the color is desaturated by 10%, the color
#3F752E is obtained.