Hex #398126 or rgb(57,129,38) in RGB space is the tint of grass green. It has hue angle of 107.47 degrees, value = 51 and saturation = 71. #398126 can be obtained by mixing 4 colors: 2 drops of yellow, 2 drops of blue, 3 drops of green, 2 drops of black.
Nearest safe hex - #339933. Below you can see the block with #398126 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #398126 to the mixer and play with it.