Hex #552785 or rgb(85,39,133) in RGB space is the tint of purple. It has hue angle of 269.36 degrees, value = 52 and saturation = 71. #552785 can be obtained by mixing 4 colors: 1 drop of red, 2 drops of magenta, 5 drops of blue, 1 drop of black.
Nearest safe hex - #663399. Below you can see the block with #552785 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #552785 to the mixer and play with it.