The hex color #57923f is a dark color. The web-safe version is Hex
#669933. A complementary color is
#A86DC0. The grayscale version is
#636363. A 20% lighter version of the original color is
#8AC572, and Hex
#245F0C is the 20% darker color. If the color is saturated by 10%, you get
#56973B. If the color is desaturated by 10%, the color
#588D43 is obtained.