The hex color #e93e2f is a dark color. The web-safe version is Hex
#FF3333. A complementary color is
#16C1D0. The grayscale version is
#727272. A 20% lighter version of the original color is
#FF7162, and Hex
#B60B00 is the 20% darker color. If the color is saturated by 10%, you get
#F53928. If the color is desaturated by 10%, the color
#DD4336 is obtained.