Hex #5b9849 or rgb(91,152,73) in RGB space is the tint of grass green. It has hue angle of 106.33 degrees, value = 60 and saturation = 52. #5b9849 can be obtained by mixing 3 colors: 5 drops of yellow, 4 drops of cyan, 5 drops of black.
Nearest safe hex - #669933. Below you can see the block with #5b9849 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #5b9849 to the mixer and play with it.