The hex color #a03a2d is a dark color. The web-safe version is Hex
#993333. A complementary color is
#5FC5D2. The grayscale version is
#585858. A 20% lighter version of the original color is
#D36D60, and Hex
#6D0700 is the 20% darker color. If the color is saturated by 10%, you get
#A73729. If the color is desaturated by 10%, the color
#993D31 is obtained.