Hex #667944 or rgb(102,121,68) in RGB space is the tint of lime. It has hue angle of 81.51 degrees, value = 47 and saturation = 44. #667944 can be obtained by mixing 4 colors: 1 drop of yellow, 3 drops of magenta, 1 drop of blue, 5 drops of green.
Nearest safe hex - #666633. Below you can see the block with #667944 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #667944 to the mixer and play with it.