Hex #66733f or rgb(102,115,63) in RGB space is the tint of lime. It has hue angle of 75.00 degrees, value = 45 and saturation = 45. #66733f can be obtained by mixing 4 colors: 5 drops of yellow, 4 drops of blue, 1 drop of white, 5 drops of black.
Nearest safe hex - #666633. Below you can see the block with #66733f color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #66733f to the mixer and play with it.