Hex #a43325 or rgb(164,51,37) in RGB space is the tint of red. It has hue angle of 6.61 degrees, value = 64 and saturation = 77. #a43325 can be obtained by mixing 4 colors: 3 drops of yellow, 3 drops of red, 3 drops of magenta, 5 drops of black.
Nearest safe hex - #993333. Below you can see the block with #a43325 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #a43325 to the mixer and play with it.