Hex #552978 or rgb(85,41,120) in RGB space is the tint of purple. It has hue angle of 273.42 degrees, value = 47 and saturation = 66. #552978 can be obtained by mixing 4 colors: 4 drops of magenta, 5 drops of blue, 1 drop of white, 5 drops of black.
Nearest safe hex - #663366. Below you can see the block with #552978 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #552978 to the mixer and play with it.