Hex #66722b or rgb(102,114,43) in RGB space is the tint of lime. It has hue angle of 70.14 degrees, value = 45 and saturation = 62. #66722b can be obtained by mixing 4 colors: 3 drops of red, 1 drop of magenta, 1 drop of cyan, 5 drops of green.
Nearest safe hex - #666633. Below you can see the block with #66722b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #66722b to the mixer and play with it.