The hex color #7b3f1c is a dark color. The web-safe version is Hex
#663333. A complementary color is
#84C0E3. The grayscale version is
#474747. A 20% lighter version of the original color is
#AE724F, and Hex
#480C00 is the 20% darker color. If the color is saturated by 10%, you get
#803E18. If the color is desaturated by 10%, the color
#764020 is obtained.