The hex color #af310d is a dark color. The web-safe version is Hex
#993300. A complementary color is
#50CEF2. The grayscale version is
#4F4F4F. A 20% lighter version of the original color is
#E26440, and Hex
#7C0000 is the 20% darker color. If the color is saturated by 10%, you get
#B92E06. If the color is desaturated by 10%, the color
#A53414 is obtained.