The hex color #8f101c is a dark color. The web-safe version is Hex
#990033. A complementary color is
#70EFE3. The grayscale version is
#3E3E3E. A 20% lighter version of the original color is
#C2434F, and Hex
#5C0000 is the 20% darker color. If the color is saturated by 10%, you get
#970B19. If the color is desaturated by 10%, the color
#87151F is obtained.