The hex color #a8072a is a dark color. The web-safe version is Hex
#990033. A complementary color is
#57F8D5. The grayscale version is
#484848. A 20% lighter version of the original color is
#DB3A5D, and Hex
#750000 is the 20% darker color. If the color is saturated by 10%, you get
#B20027. If the color is desaturated by 10%, the color
#9E0E2D is obtained.