Hex #5b6c55 or rgb(91,108,85) in RGB space is the tint of grass green. It has hue angle of 104.35 degrees, value = 42 and saturation = 21. #5b6c55 can be obtained by mixing 4 colors: 3 drops of yellow, 4 drops of blue, 2 drops of white, 5 drops of black.
Nearest safe hex - #666666. Below you can see the block with #5b6c55 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #5b6c55 to the mixer and play with it.