Hex #333766 or rgb(51,55,102) in RGB space is the tint of violet. It has hue angle of 235.29 degrees, value = 40 and saturation = 50. #333766 can be obtained by mixing 4 colors: 2 drops of magenta, 1 drop of blue, 2 drops of cyan, 5 drops of black.
Nearest safe hex - #333366. Below you can see the block with #333766 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #333766 to the mixer and play with it.