Hex #803680 or rgb(128,54,128) in RGB space is the tint of magenta. It has hue angle of 300.00 degrees, value = 50 and saturation = 58. #803680 can be obtained by mixing 4 colors: 2 drops of magenta, 1 drop of blue, 1 drop of white, 2 drops of black.
Nearest safe hex - #993399. Below you can see the block with #803680 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #803680 to the mixer and play with it.