The hex color #57a55a is a light color. The web-safe version is Hex
#669966. A complementary color is
#A85AA5. The grayscale version is
#727272. A 20% lighter version of the original color is
#8AD88D, and Hex
#247227 is the 20% darker color. If the color is saturated by 10%, you get
#54AA58. If the color is desaturated by 10%, the color
#5AA05C is obtained.