The hex color #cf343e is a dark color. The web-safe version is Hex
#CC3333. A complementary color is
#30CBC1. The grayscale version is
#6B6B6B. A 20% lighter version of the original color is
#FF6771, and Hex
#9C010B is the 20% darker color. If the color is saturated by 10%, you get
#D92F3A. If the color is desaturated by 10%, the color
#C53A43 is obtained.