Hex #802789 or rgb(128,39,137) in RGB space is the tint of magenta. It has hue angle of 294.49 degrees, value = 54 and saturation = 72. #802789 can be obtained by mixing 4 colors: 5 drops of magenta, 3 drops of blue, 1 drop of green, 1 drop of black.
Nearest safe hex - #993399. Below you can see the block with #802789 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #802789 to the mixer and play with it.