The hex color #57866c is a dark color. The web-safe version is Hex
#669966. A complementary color is
#A87993. The grayscale version is
#6E6E6E. A 20% lighter version of the original color is
#8AB99F, and Hex
#245339 is the 20% darker color. If the color is saturated by 10%, you get
#55886C. If the color is desaturated by 10%, the color
#59846C is obtained.