The hex color #e11b0f is a dark color. The web-safe version is Hex
#CC3300. A complementary color is
#1EE4F0. The grayscale version is
#595959. A 20% lighter version of the original color is
#FF4E42, and Hex
#AE0000 is the 20% darker color. If the color is saturated by 10%, you get
#EF1508. If the color is desaturated by 10%, the color
#D32116 is obtained.