The hex color #a93a1a is a dark color. The web-safe version is Hex
#993333. A complementary color is
#56C5E5. The grayscale version is
#545454. A 20% lighter version of the original color is
#DC6D4D, and Hex
#760700 is the 20% darker color. If the color is saturated by 10%, you get
#B13714. If the color is desaturated by 10%, the color
#A13D20 is obtained.