Hex #5b8649 or rgb(91,134,73) in RGB space is the tint of grass green. It has hue angle of 102.30 degrees, value = 53 and saturation = 46. #5b8649 can be obtained by mixing 4 colors: 5 drops of yellow, 3 drops of blue, 2 drops of cyan, 4 drops of black.
Nearest safe hex - #669933. Below you can see the block with #5b8649 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #5b8649 to the mixer and play with it.