Hex #405390 or rgb(64,83,144) in RGB space is the tint of blue violet. It has hue angle of 225.75 degrees, value = 56 and saturation = 56. #405390 can be obtained by mixing 4 colors: 4 drops of magenta, 2 drops of blue, 5 drops of cyan, 5 drops of black.
Nearest safe hex - #336699. Below you can see the block with #405390 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #405390 to the mixer and play with it.