Hex #668366 or rgb(102,131,102) in RGB space is the tint of green. It has hue angle of 120.00 degrees, value = 51 and saturation = 22. #668366 can be obtained by mixing 3 colors: 2 drops of red, 2 drops of cyan, 1 drop of green.
Nearest safe hex - #669966. Below you can see the block with #668366 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #668366 to the mixer and play with it.