The hex color #99431c is a dark color. The web-safe version is Hex
#993333. A complementary color is
#66BCE3. The grayscale version is
#535353. A 20% lighter version of the original color is
#CC764F, and Hex
#661000 is the 20% darker color. If the color is saturated by 10%, you get
#A04117. If the color is desaturated by 10%, the color
#924521 is obtained.