The hex color #636f3c is a dark color. The web-safe version is Hex
#666633. A complementary color is
#9C90C3. The grayscale version is
#5A5A5A. A 20% lighter version of the original color is
#96A26F, and Hex
#303C09 is the 20% darker color. If the color is saturated by 10%, you get
#647139. If the color is desaturated by 10%, the color
#626D3F is obtained.