Hex #89a090 or rgb(137,160,144) in RGB space is the tint of bluish green. It has hue angle of 138.26 degrees, value = 63 and saturation = 14. #89a090 can be obtained by mixing 4 colors: 3 drops of yellow, 5 drops of blue, 4 drops of white, 1 drop of black.
Nearest safe hex - #999999. Below you can see the block with #89a090 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #89a090 to the mixer and play with it.