Hex #552740 or rgb(85,39,64) in RGB space is the tint of scarlet. It has hue angle of 327.39 degrees, value = 33 and saturation = 54. #552740 can be obtained by mixing 4 colors: 3 drops of red, 3 drops of blue, 1 drop of white, 5 drops of black.
Nearest safe hex - #663333. Below you can see the block with #552740 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #552740 to the mixer and play with it.