Hex #71d239 or rgb(113,210,57) in RGB space is the tint of grass green. It has hue angle of 98.04 degrees, value = 82 and saturation = 73. #71d239 can be obtained by mixing 3 colors: 2 drops of yellow, 5 drops of green, 2 drops of white.
Nearest safe hex - #66cc33. Below you can see the block with #71d239 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #71d239 to the mixer and play with it.