Hex #5b9149 or rgb(91,145,73) in RGB space is the tint of grass green. It has hue angle of 105.00 degrees, value = 57 and saturation = 50. #5b9149 can be obtained by mixing 4 colors: 4 drops of yellow, 1 drop of magenta, 5 drops of blue, 4 drops of green.
Nearest safe hex - #669933. Below you can see the block with #5b9149 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #5b9149 to the mixer and play with it.