Hex #553b4e or rgb(85,59,78) in RGB space is the tint of crimson. It has hue angle of 316.15 degrees, value = 33 and saturation = 31. #553b4e can be obtained by mixing 4 colors: 3 drops of red, 1 drop of magenta, 3 drops of cyan, 5 drops of black.
Nearest safe hex - #663366. Below you can see the block with #553b4e color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #553b4e to the mixer and play with it.