Hex #66721a or rgb(102,114,26) in RGB space is the tint of lime. It has hue angle of 68.18 degrees, value = 45 and saturation = 77. #66721a can be obtained by mixing 3 colors: 4 drops of red, 1 drop of cyan, 5 drops of green.
Nearest safe hex - #666633. Below you can see the block with #66721a color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #66721a to the mixer and play with it.