The hex color #c8040e is a dark color. The web-safe version is Hex
#CC0000. A complementary color is
#37FBF1. The grayscale version is
#494949. A 20% lighter version of the original color is
#FB3741, and Hex
#950000 is the 20% darker color. If the color is saturated by 10%, you get
#D50008. If the color is desaturated by 10%, the color
#BB0B14 is obtained.