The hex color #aa2009 is a dark color. The web-safe version is Hex
#993300. A complementary color is
#55DFF6. The grayscale version is
#464646. A 20% lighter version of the original color is
#DD533C, and Hex
#770000 is the 20% darker color. If the color is saturated by 10%, you get
#B41C03. If the color is desaturated by 10%, the color
#A0240F is obtained.