Hex #663711 or rgb(102,55,17) in RGB space is the tint of orange. It has hue angle of 26.82 degrees, value = 40 and saturation = 83. #663711 can be obtained by mixing 4 colors: 2 drops of yellow, 2 drops of red, 1 drop of blue, 5 drops of black.
Nearest safe hex - #663300. Below you can see the block with #663711 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #663711 to the mixer and play with it.