Hex #333678 or rgb(51,54,120) in RGB space is the tint of violet. It has hue angle of 237.39 degrees, value = 47 and saturation = 58. #333678 can be obtained by mixing 4 colors: 2 drops of magenta, 5 drops of blue, 1 drop of green, 2 drops of black.
Nearest safe hex - #333366. Below you can see the block with #333678 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #333678 to the mixer and play with it.