Hex #89573b or rgb(137,87,59) in RGB space is the tint of orange red. It has hue angle of 21.54 degrees, value = 54 and saturation = 57. #89573b can be obtained by mixing 4 colors: 4 drops of red, 2 drops of green, 3 drops of white, 4 drops of black.
Nearest safe hex - #996633. Below you can see the block with #89573b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #89573b to the mixer and play with it.