The hex color #647d34 is a dark color. The web-safe version is Hex
#666633. A complementary color is
#9B82CB. The grayscale version is
#5C5C5C. A 20% lighter version of the original color is
#97B067, and Hex
#314A01 is the 20% darker color. If the color is saturated by 10%, you get
#658030. If the color is desaturated by 10%, the color
#637A38 is obtained.