The hex color #317a3c is a dark color. The web-safe version is Hex
#336633. A complementary color is
#CE85C3. The grayscale version is
#4D4D4D. A 20% lighter version of the original color is
#64AD6F, and Hex
#004709 is the 20% darker color. If the color is saturated by 10%, you get
#2E7F3A. If the color is desaturated by 10%, the color
#34763E is obtained.