Hex #66471a or rgb(102,71,26) in RGB space is the tint of orange. It has hue angle of 35.53 degrees, value = 40 and saturation = 75. #66471a can be obtained by mixing 4 colors: 2 drops of yellow, 2 drops of red, 1 drop of cyan, 5 drops of black.
Nearest safe hex - #663333. Below you can see the block with #66471a color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #66471a to the mixer and play with it.