The hex color #57703b is a dark color. The web-safe version is Hex
#666633. A complementary color is
#A88FC4. The grayscale version is
#565656. A 20% lighter version of the original color is
#8AA36E, and Hex
#243D08 is the 20% darker color. If the color is saturated by 10%, you get
#577338. If the color is desaturated by 10%, the color
#576D3E is obtained.