The hex color #566e16 is a dark color. The web-safe version is Hex
#666600. A complementary color is
#A991E9. The grayscale version is
#494949. A 20% lighter version of the original color is
#89A149, and Hex
#233B00 is the 20% darker color. If the color is saturated by 10%, you get
#577211. If the color is desaturated by 10%, the color
#556A1B is obtained.