Hex #553b6b or rgb(85,59,107) in RGB space is the tint of purple. It has hue angle of 272.50 degrees, value = 42 and saturation = 45. #553b6b can be obtained by mixing 4 colors: 1 drop of red, 3 drops of magenta, 3 drops of cyan, 5 drops of black.
Nearest safe hex - #663366. Below you can see the block with #553b6b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #553b6b to the mixer and play with it.