The hex color #a8392f is a dark color. The web-safe version is Hex
#993333. A complementary color is
#57C6D0. The grayscale version is
#5B5B5B. A 20% lighter version of the original color is
#DB6C62, and Hex
#750600 is the 20% darker color. If the color is saturated by 10%, you get
#B0362B. If the color is desaturated by 10%, the color
#A03C33 is obtained.