Hex #8b9eb2 or rgb(139,158,178) in RGB space is the tint of blue. It has hue angle of 210.77 degrees, value = 70 and saturation = 22. #8b9eb2 can be obtained by mixing 4 colors: 1 drop of red, 4 drops of blue, 1 drop of green, 5 drops of white.
Nearest safe hex - #999999. Below you can see the block with #8b9eb2 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #8b9eb2 to the mixer and play with it.