Hex #448f22 or rgb(68,143,34) in RGB space is the tint of grass green. It has hue angle of 101.28 degrees, value = 56 and saturation = 76. #448f22 can be obtained by mixing 4 colors: 4 drops of yellow, 2 drops of cyan, 4 drops of green, 5 drops of black.
Nearest safe hex - #339933. Below you can see the block with #448f22 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #448f22 to the mixer and play with it.