Hex #403980 or rgb(64,57,128) in RGB space is the tint of violet. It has hue angle of 245.92 degrees, value = 50 and saturation = 55. #403980 can be obtained by mixing 4 colors: 3 drops of magenta, 3 drops of blue, 2 drops of cyan, 4 drops of black.
Nearest safe hex - #333399. Below you can see the block with #403980 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #403980 to the mixer and play with it.