The hex color #b1143f is a dark color. The web-safe version is Hex
#990033. A complementary color is
#4EEBC0. The grayscale version is
#575757. A 20% lighter version of the original color is
#E44772, and Hex
#7E000C is the 20% darker color. If the color is saturated by 10%, you get
#BA0D3D. If the color is desaturated by 10%, the color
#A81B41 is obtained.