Hex #55391d or rgb(85,57,29) in RGB space is the tint of orange. It has hue angle of 30.00 degrees, value = 33 and saturation = 66. #55391d can be obtained by mixing 4 colors: 4 drops of red, 2 drops of blue, 3 drops of green, 3 drops of black.
Nearest safe hex - #663333. Below you can see the block with #55391d color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #55391d to the mixer and play with it.