The hex color #a72d34 is a dark color. The web-safe version is Hex
#993333. A complementary color is
#58D2CB. The grayscale version is
#585858. A 20% lighter version of the original color is
#DA6067, and Hex
#740001 is the 20% darker color. If the color is saturated by 10%, you get
#AF2930. If the color is desaturated by 10%, the color
#9F3138 is obtained.