The hex color #b80c2d is a dark color. The web-safe version is Hex
#CC0033. A complementary color is
#47F3D2. The grayscale version is
#505050. A 20% lighter version of the original color is
#EB3F60, and Hex
#850000 is the 20% darker color. If the color is saturated by 10%, you get
#C20529. If the color is desaturated by 10%, the color
#AE1331 is obtained.