Hex #663017 or rgb(102,48,23) in RGB space is the tint of orange red. It has hue angle of 18.99 degrees, value = 40 and saturation = 77. #663017 can be obtained by mixing 4 colors: 4 drops of red, 2 drops of magenta, 4 drops of green, 5 drops of black.
Nearest safe hex - #663300. Below you can see the block with #663017 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #663017 to the mixer and play with it.