The hex color #8a0a01 is a dark color. The web-safe version is Hex
#990000. A complementary color is
#75F5FE. The grayscale version is
#323232. A 20% lighter version of the original color is
#BD3D34, and Hex
#570000 is the 20% darker color. If the color is saturated by 10%, you get
#930600. If the color is desaturated by 10%, the color
#810E06 is obtained.