Hex #553a4c or rgb(85,58,76) in RGB space is the tint of crimson. It has hue angle of 320.00 degrees, value = 33 and saturation = 32. #553a4c can be obtained by mixing 4 colors: 1 drop of yellow, 2 drops of red, 4 drops of blue, 2 drops of black.
Nearest safe hex - #663333. Below you can see the block with #553a4c color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #553a4c to the mixer and play with it.