Hex #803491 or rgb(128,52,145) in RGB space is the tint of purple magenta. It has hue angle of 289.03 degrees, value = 57 and saturation = 64. #803491 can be obtained by mixing 4 colors: 2 drops of red, 3 drops of magenta, 4 drops of blue, 1 drop of cyan.
Nearest safe hex - #993399. Below you can see the block with #803491 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #803491 to the mixer and play with it.