Hex #664233 or rgb(102,66,51) in RGB space is the tint of orange red. It has hue angle of 17.65 degrees, value = 40 and saturation = 50. #664233 can be obtained by mixing 4 colors: 4 drops of red, 2 drops of cyan, 1 drop of green, 3 drops of black.
Nearest safe hex - #663333. Below you can see the block with #664233 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #664233 to the mixer and play with it.