Hex #a45937 or rgb(164,89,55) in RGB space is the tint of orange red. It has hue angle of 18.72 degrees, value = 64 and saturation = 66. #a45937 can be obtained by mixing 4 colors: 2 drops of yellow, 4 drops of red, 3 drops of white, 5 drops of black.
Nearest safe hex - #996633. Below you can see the block with #a45937 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #a45937 to the mixer and play with it.