The hex color #c74c4f is a dark color. The web-safe version is Hex
#CC3366. A complementary color is
#38B3B0. The grayscale version is
#767676. A 20% lighter version of the original color is
#FA7F82, and Hex
#94191C is the 20% darker color. If the color is saturated by 10%, you get
#CF484B. If the color is desaturated by 10%, the color
#BF5053 is obtained.