Hex #87521e or rgb(135,82,30) in RGB space is the tint of orange. It has hue angle of 29.71 degrees, value = 53 and saturation = 78. #87521e can be obtained by mixing 4 colors: 5 drops of yellow, 4 drops of red, 3 drops of blue, 5 drops of black.
Nearest safe hex - #996633. Below you can see the block with #87521e color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #87521e to the mixer and play with it.