Hex #551844 or rgb(85,24,68) in RGB space is the tint of crimson. It has hue angle of 316.72 degrees, value = 33 and saturation = 72. #551844 can be obtained by mixing 4 colors: 4 drops of red, 1 drop of magenta, 5 drops of blue, 5 drops of black.
Nearest safe hex - #660033. Below you can see the block with #551844 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #551844 to the mixer and play with it.