Hex #403b6b or rgb(64,59,107) in RGB space is the tint of violet. It has hue angle of 246.25 degrees, value = 42 and saturation = 45. #403b6b can be obtained by mixing 3 colors: 1 drop of magenta, 1 drop of cyan, 2 drops of black.
Nearest safe hex - #333366. Below you can see the block with #403b6b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #403b6b to the mixer and play with it.