Hex #665744 or rgb(102,87,68) in RGB space is the tint of orange. It has hue angle of 33.53 degrees, value = 40 and saturation = 33. #665744 can be obtained by mixing 4 colors: 1 drop of red, 1 drop of magenta, 1 drop of blue, 2 drops of green.
Nearest safe hex - #666633. Below you can see the block with #665744 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #665744 to the mixer and play with it.