Hex #667833 or rgb(102,120,51) in RGB space is the tint of lime. It has hue angle of 75.65 degrees, value = 47 and saturation = 58. #667833 can be obtained by mixing 3 colors: 2 drops of red, 1 drop of cyan, 2 drops of green.
Nearest safe hex - #666633. Below you can see the block with #667833 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #667833 to the mixer and play with it.