Hex #55444f or rgb(85,68,79) in RGB space is the tint of crimson. It has hue angle of 321.18 degrees, value = 33 and saturation = 20. #55444f can be obtained by mixing 4 colors: 5 drops of red, 1 drop of blue, 4 drops of cyan, 5 drops of black.
Nearest safe hex - #663366. Below you can see the block with #55444f color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #55444f to the mixer and play with it.