Hex #391839 or rgb(57,24,57) in RGB space is the tint of magenta. It has hue angle of 300.00 degrees, value = 22 and saturation = 58. #391839 can be obtained by mixing 3 colors: 2 drops of red, 3 drops of blue, 4 drops of black.
Nearest safe hex - #330033. Below you can see the block with #391839 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #391839 to the mixer and play with it.