Hex #551439 or rgb(85,20,57) in RGB space is the tint of scarlet. It has hue angle of 325.85 degrees, value = 33 and saturation = 76. #551439 can be obtained by mixing 3 colors: 3 drops of magenta, 1 drop of green, 5 drops of black.
Nearest safe hex - #660033. Below you can see the block with #551439 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #551439 to the mixer and play with it.