Hex #553c98 or rgb(85,60,152) in RGB space is the tint of purple violet. It has hue angle of 256.30 degrees, value = 60 and saturation = 61. #553c98 can be obtained by mixing 3 colors: 3 drops of magenta, 5 drops of blue, 1 drop of green.
Nearest safe hex - #663399. Below you can see the block with #553c98 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #553c98 to the mixer and play with it.