Hex #55331d or rgb(85,51,29) in RGB space is the tint of orange. It has hue angle of 23.57 degrees, value = 33 and saturation = 66. #55331d can be obtained by mixing 4 colors: 1 drop of yellow, 1 drop of red, 1 drop of blue, 3 drops of black.
Nearest safe hex - #663333. Below you can see the block with #55331d color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #55331d to the mixer and play with it.