The hex color #b83b4e is a dark color. The web-safe version is Hex
#CC3366. A complementary color is
#47C4B1. The grayscale version is
#6B6B6B. A 20% lighter version of the original color is
#EB6E81, and Hex
#85081B is the 20% darker color. If the color is saturated by 10%, you get
#C0364B. If the color is desaturated by 10%, the color
#B04051 is obtained.