The hex color #a72b5b is a dark color. The web-safe version is Hex
#993366. A complementary color is
#58D4A4. The grayscale version is
#646464. A 20% lighter version of the original color is
#DA5E8E, and Hex
#740028 is the 20% darker color. If the color is saturated by 10%, you get
#AE255A. If the color is desaturated by 10%, the color
#A0315C is obtained.