The hex color #6d8f5c is a dark color. The web-safe version is Hex
#669966. A complementary color is
#9270A3. The grayscale version is
#737373. A 20% lighter version of the original color is
#A0C28F, and Hex
#3A5C29 is the 20% darker color. If the color is saturated by 10%, you get
#6C925A. If the color is desaturated by 10%, the color
#6E8C5E is obtained.