The hex color #51795c is a dark color. The web-safe version is Hex
#666666. A complementary color is
#AE86A3. The grayscale version is
#626262. A 20% lighter version of the original color is
#84AC8F, and Hex
#1E4629 is the 20% darker color. If the color is saturated by 10%, you get
#4F7B5B. If the color is desaturated by 10%, the color
#53775D is obtained.