The hex color #b54d1b is a dark color. The web-safe version is Hex
#CC6633. A complementary color is
#4AB2E4. The grayscale version is
#5F5F5F. A 20% lighter version of the original color is
#E8804E, and Hex
#821A00 is the 20% darker color. If the color is saturated by 10%, you get
#BE4B14. If the color is desaturated by 10%, the color
#AC4F22 is obtained.