Hex #55392b or rgb(85,57,43) in RGB space is the tint of orange red. It has hue angle of 20.00 degrees, value = 33 and saturation = 49. #55392b can be obtained by mixing 4 colors: 2 drops of yellow, 2 drops of red, 3 drops of blue, 5 drops of black.
Nearest safe hex - #663333. Below you can see the block with #55392b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #55392b to the mixer and play with it.