Hex #667844 or rgb(102,120,68) in RGB space is the tint of lime. It has hue angle of 80.77 degrees, value = 47 and saturation = 43. #667844 can be obtained by mixing 4 colors: 3 drops of red, 1 drop of magenta, 2 drops of cyan, 4 drops of green.
Nearest safe hex - #666633. Below you can see the block with #667844 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #667844 to the mixer and play with it.