Hex #664c39 or rgb(102,76,57) in RGB space is the tint of orange. It has hue angle of 25.33 degrees, value = 40 and saturation = 44. #664c39 can be obtained by mixing 4 colors: 1 drop of yellow, 5 drops of magenta, 5 drops of green, 4 drops of black.
Nearest safe hex - #663333. Below you can see the block with #664c39 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #664c39 to the mixer and play with it.