The hex color #57642c is a dark color. The web-safe version is Hex
#666633. A complementary color is
#A89BD3. The grayscale version is
#4D4D4D. A 20% lighter version of the original color is
#8A975F, and Hex
#243100 is the 20% darker color. If the color is saturated by 10%, you get
#586629. If the color is desaturated by 10%, the color
#56622F is obtained.