Hex #666f2e or rgb(102,111,46) in RGB space is the tint of lime. It has hue angle of 68.31 degrees, value = 44 and saturation = 59. #666f2e can be obtained by mixing 4 colors: 2 drops of yellow, 4 drops of red, 4 drops of blue, 5 drops of green.
Nearest safe hex - #666633. Below you can see the block with #666f2e color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #666f2e to the mixer and play with it.