Hex #5bb249 or rgb(91,178,73) in RGB space is the tint of grass green. It has hue angle of 109.71 degrees, value = 70 and saturation = 59. #5bb249 can be obtained by mixing 4 colors: 5 drops of yellow, 4 drops of cyan, 2 drops of green, 3 drops of black.
Nearest safe hex - #669933. Below you can see the block with #5bb249 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #5bb249 to the mixer and play with it.