Hex #5b8449 or rgb(91,132,73) in RGB space is the tint of grass green. It has hue angle of 101.69 degrees, value = 52 and saturation = 45. #5b8449 can be obtained by mixing 3 colors: 5 drops of red, 4 drops of cyan, 5 drops of green.
Nearest safe hex - #669933. Below you can see the block with #5b8449 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #5b8449 to the mixer and play with it.