Hex #664833 or rgb(102,72,51) in RGB space is the tint of orange. It has hue angle of 24.71 degrees, value = 40 and saturation = 50. #664833 can be obtained by mixing 4 colors: 1 drop of red, 3 drops of magenta, 4 drops of green, 2 drops of black.
Nearest safe hex - #663333. Below you can see the block with #664833 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #664833 to the mixer and play with it.