The hex color #bb1f0c is a dark color. The web-safe version is Hex
#CC3300. A complementary color is
#44E0F3. The grayscale version is
#4D4D4D. A 20% lighter version of the original color is
#EE523F, and Hex
#880000 is the 20% darker color. If the color is saturated by 10%, you get
#C61A06. If the color is desaturated by 10%, the color
#B02412 is obtained.