The hex color #548b51 is a dark color. The web-safe version is Hex
#669966. A complementary color is
#AB74AE. The grayscale version is
#656565. A 20% lighter version of the original color is
#87BE84, and Hex
#21581E is the 20% darker color. If the color is saturated by 10%, you get
#528F4F. If the color is desaturated by 10%, the color
#568753 is obtained.