The hex color #ac432c is a dark color. The web-safe version is Hex
#993333. A complementary color is
#53BCD3. The grayscale version is
#5E5E5E. A 20% lighter version of the original color is
#DF765F, and Hex
#791000 is the 20% darker color. If the color is saturated by 10%, you get
#B44027. If the color is desaturated by 10%, the color
#A44631 is obtained.