The hex color #a41e2d is a dark color. The web-safe version is Hex
#993333. A complementary color is
#5BE1D2. The grayscale version is
#505050. A 20% lighter version of the original color is
#D75160, and Hex
#710000 is the 20% darker color. If the color is saturated by 10%, you get
#AC192A. If the color is desaturated by 10%, the color
#9C2330 is obtained.