The hex color #a63e2a is a dark color. The web-safe version is Hex
#993333. A complementary color is
#59C1D5. The grayscale version is
#5A5A5A. A 20% lighter version of the original color is
#D9715D, and Hex
#730B00 is the 20% darker color. If the color is saturated by 10%, you get
#AE3B25. If the color is desaturated by 10%, the color
#9E412F is obtained.