Hex #498c3d or rgb(73,140,61) in RGB space is the tint of grass green. It has hue angle of 110.89 degrees, value = 55 and saturation = 56. #498c3d can be obtained by mixing 4 colors: 1 drop of magenta, 4 drops of green, 1 drop of white, 1 drop of black.
Nearest safe hex - #339933. Below you can see the block with #498c3d color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #498c3d to the mixer and play with it.