Hex #553c85 or rgb(85,60,133) in RGB space is the tint of purple violet. It has hue angle of 260.55 degrees, value = 52 and saturation = 55. #553c85 can be obtained by mixing 4 colors: 1 drop of red, 2 drops of magenta, 5 drops of blue, 1 drop of green.
Nearest safe hex - #663399. Below you can see the block with #553c85 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #553c85 to the mixer and play with it.