The hex color #c80f3b is a dark color. The web-safe version is Hex
#CC0033. A complementary color is
#37F0C4. The grayscale version is
#5B5B5B. A 20% lighter version of the original color is
#FB426E, and Hex
#950008 is the 20% darker color. If the color is saturated by 10%, you get
#D30738. If the color is desaturated by 10%, the color
#BD173E is obtained.