Hex #667f22 or rgb(102,127,34) in RGB space is the tint of lime. It has hue angle of 76.13 degrees, value = 50 and saturation = 73. #667f22 can be obtained by mixing 4 colors: 4 drops of yellow, 2 drops of blue, 1 drop of green, 3 drops of black.
Nearest safe hex - #666633. Below you can see the block with #667f22 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #667f22 to the mixer and play with it.