The hex color #5a815c is a dark color. The web-safe version is Hex
#669966. A complementary color is
#A57EA3. The grayscale version is
#686868. A 20% lighter version of the original color is
#8DB48F, and Hex
#274E29 is the 20% darker color. If the color is saturated by 10%, you get
#59845B. If the color is desaturated by 10%, the color
#5B7E5D is obtained.