Hex #553c8e or rgb(85,60,142) in RGB space is the tint of purple violet. It has hue angle of 258.29 degrees, value = 56 and saturation = 58. #553c8e can be obtained by mixing 4 colors: 2 drops of magenta, 4 drops of blue, 1 drop of white, 2 drops of black.
Nearest safe hex - #663399. Below you can see the block with #553c8e color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #553c8e to the mixer and play with it.