The hex color #e11e3f is a dark color. The web-safe version is Hex
#CC3333. A complementary color is
#1EE1C0. The grayscale version is
#6A6A6A. A 20% lighter version of the original color is
#FF5172, and Hex
#AE000C is the 20% darker color. If the color is saturated by 10%, you get
#ED163B. If the color is desaturated by 10%, the color
#D52643 is obtained.