The hex color #256c2b is a dark color. The web-safe version is Hex
#336633. A complementary color is
#DA93D4. The grayscale version is
#3F3F3F. A 20% lighter version of the original color is
#589F5E, and Hex
#003900 is the 20% darker color. If the color is saturated by 10%, you get
#227129. If the color is desaturated by 10%, the color
#28672D is obtained.