Hex #555085 or rgb(85,80,133) in RGB space is the tint of violet. It has hue angle of 245.66 degrees, value = 52 and saturation = 40. #555085 can be obtained by mixing 4 colors: 1 drop of magenta, 3 drops of blue, 2 drops of white, 3 drops of black.
Nearest safe hex - #666699. Below you can see the block with #555085 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #555085 to the mixer and play with it.