Hex #6d7f68 or rgb(109,127,104) in RGB space is the tint of grass green. It has hue angle of 106.96 degrees, value = 50 and saturation = 18. #6d7f68 can be obtained by mixing 4 colors: 3 drops of red, 4 drops of blue, 4 drops of green, 3 drops of white.
Nearest safe hex - #666666. Below you can see the block with #6d7f68 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #6d7f68 to the mixer and play with it.