The hex color #bf372e is a dark color. The web-safe version is Hex
#CC3333. A complementary color is
#40C8D1. The grayscale version is
#616161. A 20% lighter version of the original color is
#F26A61, and Hex
#8C0400 is the 20% darker color. If the color is saturated by 10%, you get
#C83329. If the color is desaturated by 10%, the color
#B63B33 is obtained.