Hex #5b8e49 or rgb(91,142,73) in RGB space is the tint of grass green. It has hue angle of 104.35 degrees, value = 56 and saturation = 49. #5b8e49 can be obtained by mixing 4 colors: 1 drop of yellow, 4 drops of green, 4 drops of white, 5 drops of black.
Nearest safe hex - #669933. Below you can see the block with #5b8e49 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #5b8e49 to the mixer and play with it.