Hex #40438b or rgb(64,67,139) in RGB space is the tint of violet. It has hue angle of 237.60 degrees, value = 55 and saturation = 54. #40438b can be obtained by mixing 4 colors: 1 drop of magenta, 4 drops of blue, 1 drop of white, 2 drops of black.
Nearest safe hex - #333399. Below you can see the block with #40438b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #40438b to the mixer and play with it.