Hex #89b56f or rgb(137,181,111) in RGB space is the tint of grass green. It has hue angle of 97.71 degrees, value = 71 and saturation = 39. #89b56f can be obtained by mixing 4 colors: 4 drops of yellow, 4 drops of blue, 2 drops of green, 3 drops of white.
Nearest safe hex - #99cc66. Below you can see the block with #89b56f color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #89b56f to the mixer and play with it.