The hex color #8a042c is a dark color. The web-safe version is Hex
#990033. A complementary color is
#75FBD3. The grayscale version is
#3E3E3E. A 20% lighter version of the original color is
#BD375F, and Hex
#570000 is the 20% darker color. If the color is saturated by 10%, you get
#92002A. If the color is desaturated by 10%, the color
#820A2E is obtained.