Hex #89a57c or rgb(137,165,124) in RGB space is the tint of grass green. It has hue angle of 100.98 degrees, value = 65 and saturation = 25. #89a57c can be obtained by mixing 4 colors: 2 drops of red, 2 drops of blue, 4 drops of green, 5 drops of white.
Nearest safe hex - #999966. Below you can see the block with #89a57c color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #89a57c to the mixer and play with it.