The hex color #4c131c is a dark color. The web-safe version is Hex
#330033. A complementary color is
#B3ECE3. The grayscale version is
#292929. A 20% lighter version of the original color is
#7F464F, and Hex
#190000 is the 20% darker color. If the color is saturated by 10%, you get
#50111B. If the color is desaturated by 10%, the color
#49151D is obtained.