The hex color #99273c is a dark color. The web-safe version is Hex
#993333. A complementary color is
#66D8C3. The grayscale version is
#545454. A 20% lighter version of the original color is
#CC5A6F, and Hex
#660009 is the 20% darker color. If the color is saturated by 10%, you get
#A0233A. If the color is desaturated by 10%, the color
#922C3E is obtained.