The hex color #57d56a is a light color. The web-safe version is Hex
#66CC66. A complementary color is
#A82A95. The grayscale version is
#878787. A 20% lighter version of the original color is
#8AFF9D, and Hex
#24A237 is the 20% darker color. If the color is saturated by 10%, you get
#52DD67. If the color is desaturated by 10%, the color
#5CCD6D is obtained.