The hex color #8a3d1f is a dark color. The web-safe version is Hex
#993333. A complementary color is
#75C2E0. The grayscale version is
#4D4D4D. A 20% lighter version of the original color is
#BD7052, and Hex
#570A00 is the 20% darker color. If the color is saturated by 10%, you get
#903B1A. If the color is desaturated by 10%, the color
#843F24 is obtained.