Hex #89aab1 or rgb(137,170,177) in RGB space is the tint of bluish cian. It has hue angle of 190.50 degrees, value = 69 and saturation = 23. #89aab1 can be obtained by mixing 4 colors: 3 drops of red, 5 drops of cyan, 4 drops of white, 1 drop of black.
Nearest safe hex - #999999. Below you can see the block with #89aab1 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #89aab1 to the mixer and play with it.