Hex #667f2e or rgb(102,127,46) in RGB space is the tint of lime. It has hue angle of 78.52 degrees, value = 50 and saturation = 64. #667f2e can be obtained by mixing 4 colors: 3 drops of yellow, 3 drops of red, 4 drops of blue, 5 drops of green.
Nearest safe hex - #666633. Below you can see the block with #667f2e color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #667f2e to the mixer and play with it.