The hex color #b1351a is a dark color. The web-safe version is Hex
#993333. A complementary color is
#4ECAE5. The grayscale version is
#555555. A 20% lighter version of the original color is
#E4684D, and Hex
#7E0200 is the 20% darker color. If the color is saturated by 10%, you get
#BA3214. If the color is desaturated by 10%, the color
#A83820 is obtained.