The hex color #e32003 is a dark color. The web-safe version is Hex
#CC3300. A complementary color is
#1CDFFC. The grayscale version is
#575757. A 20% lighter version of the original color is
#FF5336, and Hex
#B00000 is the 20% darker color. If the color is saturated by 10%, you get
#F11A00. If the color is desaturated by 10%, the color
#D5260B is obtained.