Hex #99a8b3 or rgb(153,168,179) in RGB space is the tint of blue. It has hue angle of 205.38 degrees, value = 70 and saturation = 15. #99a8b3 can be obtained by mixing 4 colors: 2 drops of yellow, 3 drops of magenta, 4 drops of cyan, 1 drop of white.
Nearest safe hex - #9999cc. Below you can see the block with #99a8b3 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #99a8b3 to the mixer and play with it.