The hex color #e32b0b is a dark color. The web-safe version is Hex
#CC3300. A complementary color is
#1CD4F4. The grayscale version is
#5E5E5E. A 20% lighter version of the original color is
#FF5E3E, and Hex
#B00000 is the 20% darker color. If the color is saturated by 10%, you get
#F02603. If the color is desaturated by 10%, the color
#D63013 is obtained.