Hex #899089 or rgb(137,144,137) in RGB space is the tint of green. It has hue angle of 120.00 degrees, value = 56 and saturation = 5. #899089 can be obtained by mixing 4 colors: 5 drops of red, 5 drops of cyan, 1 drop of green, 2 drops of white.
Nearest safe hex - #999999. Below you can see the block with #899089 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #899089 to the mixer and play with it.