Hex #8b9f8b or rgb(139,159,139) in RGB space is the tint of green. It has hue angle of 120.00 degrees, value = 62 and saturation = 13. #8b9f8b can be obtained by mixing 4 colors: 1 drop of yellow, 1 drop of cyan, 5 drops of white, 4 drops of black.
Nearest safe hex - #999999. Below you can see the block with #8b9f8b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #8b9f8b to the mixer and play with it.