Hex #403b75 or rgb(64,59,117) in RGB space is the tint of violet. It has hue angle of 245.17 degrees, value = 46 and saturation = 50. #403b75 can be obtained by mixing 4 colors: 1 drop of magenta, 3 drops of blue, 1 drop of white, 3 drops of black.
Nearest safe hex - #333366. Below you can see the block with #403b75 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #403b75 to the mixer and play with it.