The hex color #577d2d is a dark color. The web-safe version is Hex
#666633. A complementary color is
#A882D2. The grayscale version is
#565656. A 20% lighter version of the original color is
#8AB060, and Hex
#244A00 is the 20% darker color. If the color is saturated by 10%, you get
#578129. If the color is desaturated by 10%, the color
#577931 is obtained.