The hex color #cf453f is a dark color. The web-safe version is Hex
#CC3333. A complementary color is
#30BAC0. The grayscale version is
#717171. A 20% lighter version of the original color is
#FF7872, and Hex
#9C120C is the 20% darker color. If the color is saturated by 10%, you get
#D8413A. If the color is desaturated by 10%, the color
#C64944 is obtained.