Hex #551c13 or rgb(85,28,19) in RGB space is the tint of orange red. It has hue angle of 8.18 degrees, value = 33 and saturation = 78. #551c13 can be obtained by mixing 4 colors: 3 drops of red, 1 drop of blue, 1 drop of green, 4 drops of black.
Nearest safe hex - #663300. Below you can see the block with #551c13 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #551c13 to the mixer and play with it.