The hex color #aa3d2b is a dark color. The web-safe version is Hex
#993333. A complementary color is
#55C2D4. The grayscale version is
#5B5B5B. A 20% lighter version of the original color is
#DD705E, and Hex
#770A00 is the 20% darker color. If the color is saturated by 10%, you get
#B23A26. If the color is desaturated by 10%, the color
#A24030 is obtained.