Hex #803631 or rgb(128,54,49) in RGB space is the tint of red. It has hue angle of 3.80 degrees, value = 50 and saturation = 62. #803631 can be obtained by mixing 4 colors: 2 drops of yellow, 5 drops of red, 4 drops of blue, 3 drops of black.
Nearest safe hex - #993333. Below you can see the block with #803631 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #803631 to the mixer and play with it.