Hex #66473c or rgb(102,71,60) in RGB space is the tint of orange red. It has hue angle of 15.71 degrees, value = 40 and saturation = 41. #66473c can be obtained by mixing 4 colors: 2 drops of yellow, 2 drops of magenta, 1 drop of cyan, 5 drops of black.
Nearest safe hex - #663333. Below you can see the block with #66473c color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #66473c to the mixer and play with it.