Hex #378c37 or rgb(55,140,55) in RGB space is the tint of green. It has hue angle of 120.00 degrees, value = 55 and saturation = 61. #378c37 can be obtained by mixing 4 colors: 3 drops of yellow, 3 drops of cyan, 3 drops of green, 5 drops of black.
Nearest safe hex - #339933. Below you can see the block with #378c37 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #378c37 to the mixer and play with it.