The hex color #ac162c is a dark color. The web-safe version is Hex
#990033. A complementary color is
#53E9D3. The grayscale version is
#4F4F4F. A 20% lighter version of the original color is
#DF495F, and Hex
#790000 is the 20% darker color. If the color is saturated by 10%, you get
#B51028. If the color is desaturated by 10%, the color
#A31C30 is obtained.