Hex #667822 or rgb(102,120,34) in RGB space is the tint of lime. It has hue angle of 72.56 degrees, value = 47 and saturation = 72. #667822 can be obtained by mixing 4 colors: 1 drop of yellow, 1 drop of magenta, 2 drops of green, 1 drop of black.
Nearest safe hex - #666633. Below you can see the block with #667822 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #667822 to the mixer and play with it.