The hex color #8b1b39 is a dark color. The web-safe version is Hex
#993333. A complementary color is
#74E4C6. The grayscale version is
#4A4A4A. A 20% lighter version of the original color is
#BE4E6C, and Hex
#580006 is the 20% darker color. If the color is saturated by 10%, you get
#911637. If the color is desaturated by 10%, the color
#85203B is obtained.