The hex color #e33704 is a dark color. The web-safe version is Hex
#CC3300. A complementary color is
#1CC8FB. The grayscale version is
#5F5F5F. A 20% lighter version of the original color is
#FF6A37, and Hex
#B00400 is the 20% darker color. If the color is saturated by 10%, you get
#F03300. If the color is desaturated by 10%, the color
#D63B0D is obtained.