Hex #378412 or rgb(55,132,18) in RGB space is the tint of grass green. It has hue angle of 100.53 degrees, value = 52 and saturation = 86. #378412 can be obtained by mixing 4 colors: 3 drops of yellow, 1 drop of cyan, 5 drops of green, 5 drops of black.
Nearest safe hex - #339900. Below you can see the block with #378412 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #378412 to the mixer and play with it.