The hex color #9F0010 is a dark color. The web-safe version is Hex
#990000. A complementary color is
#60FFEF. The grayscale version is
#3A3A3A. A 20% lighter version of the original color is
#D23343, and Hex
#6C0000 is the 20% darker color. If the color is saturated by 10%, you get
#A9000C. If the color is desaturated by 10%, the color
#950614 is obtained.