Hex #d5522b or rgb(213,82,43) in RGB space is the tint of orange red. It has hue angle of 13.76 degrees, value = 84 and saturation = 80. #d5522b can be obtained by mixing 4 colors: 1 drop of yellow, 3 drops of red, 1 drop of white, 1 drop of black.
Nearest safe hex - #cc6633. Below you can see the block with #d5522b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #d5522b to the mixer and play with it.