Hex #552f8f or rgb(85,47,143) in RGB space is the tint of purple. It has hue angle of 263.75 degrees, value = 56 and saturation = 67. #552f8f can be obtained by mixing 3 colors: 1 drop of red, 1 drop of magenta, 4 drops of blue.
Nearest safe hex - #663399. Below you can see the block with #552f8f color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #552f8f to the mixer and play with it.