Hex #8b918b or rgb(139,145,139) in RGB space is the tint of green. It has hue angle of 120.00 degrees, value = 57 and saturation = 4. #8b918b can be obtained by mixing 4 colors: 2 drops of red, 3 drops of blue, 2 drops of green, 4 drops of white.
Nearest safe hex - #999999. Below you can see the block with #8b918b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #8b918b to the mixer and play with it.