Hex #553222 or rgb(85,50,34) in RGB space is the tint of orange red. It has hue angle of 18.82 degrees, value = 33 and saturation = 60. #553222 can be obtained by mixing 4 colors: 5 drops of red, 3 drops of blue, 3 drops of green, 4 drops of black.
Nearest safe hex - #663333. Below you can see the block with #553222 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #553222 to the mixer and play with it.