Hex #8091a0 or rgb(128,145,160) in RGB space is the tint of blue. It has hue angle of 208.13 degrees, value = 63 and saturation = 20. #8091a0 can be obtained by mixing 4 colors: 1 drop of red, 3 drops of blue, 1 drop of green, 3 drops of white.
Nearest safe hex - #999999. Below you can see the block with #8091a0 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #8091a0 to the mixer and play with it.