The hex color #578D5E is a dark color. The web-safe version is Hex
#669966. A complementary color is
#A872A1. The grayscale version is
#6B6B6B. A 20% lighter version of the original color is
#8AC091, and Hex
#245A2B is the 20% darker color. If the color is saturated by 10%, you get
#55905D. If the color is desaturated by 10%, the color
#598A5F is obtained.