Hex #718b72 or rgb(113,139,114) in RGB space is the tint of green. It has hue angle of 122.31 degrees, value = 55 and saturation = 19. #718b72 can be obtained by mixing 4 colors: 1 drop of yellow, 3 drops of magenta, 2 drops of cyan, 3 drops of green.
Nearest safe hex - #669966. Below you can see the block with #718b72 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #718b72 to the mixer and play with it.