The hex color #a3411d is a dark color. The web-safe version is Hex
#993333. A complementary color is
#5CBEE2. The grayscale version is
#565656. A 20% lighter version of the original color is
#D67450, and Hex
#700E00 is the 20% darker color. If the color is saturated by 10%, you get
#AB3F17. If the color is desaturated by 10%, the color
#9B4323 is obtained.