Hex #606640 or rgb(96,102,64) in RGB space is the tint of lime. It has hue angle of 69.47 degrees, value = 40 and saturation = 37. #606640 can be obtained by mixing 4 colors: 1 drop of yellow, 2 drops of red, 3 drops of blue, 2 drops of green.
Nearest safe hex - #666633. Below you can see the block with #606640 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #606640 to the mixer and play with it.