The hex color #b1423f is a dark color. The web-safe version is Hex
#993333. A complementary color is
#4EBDC0. The grayscale version is
#666666. A 20% lighter version of the original color is
#E47572, and Hex
#7E0F0C is the 20% darker color. If the color is saturated by 10%, you get
#B93E3B. If the color is desaturated by 10%, the color
#AA4643 is obtained.