Hex #5b8749 or rgb(91,135,73) in RGB space is the tint of grass green. It has hue angle of 102.58 degrees, value = 53 and saturation = 46. #5b8749 can be obtained by mixing 4 colors: 4 drops of yellow, 1 drop of red, 4 drops of cyan, 5 drops of black.
Nearest safe hex - #669933. Below you can see the block with #5b8749 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #5b8749 to the mixer and play with it.