Hex #803639 or rgb(128,54,57) in RGB space is the tint of red. It has hue angle of 357.57 degrees, value = 50 and saturation = 58. #803639 can be obtained by mixing 3 colors: 3 drops of red, 2 drops of blue, 1 drop of green.
Nearest safe hex - #993333. Below you can see the block with #803639 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #803639 to the mixer and play with it.