The hex color #b83a57 is a dark color. The web-safe version is Hex
#CC3366. A complementary color is
#47C5A8. The grayscale version is
#6E6E6E. A 20% lighter version of the original color is
#EB6D8A, and Hex
#850724 is the 20% darker color. If the color is saturated by 10%, you get
#BF3555. If the color is desaturated by 10%, the color
#B13F59 is obtained.