Hex #99a7b3 or rgb(153,167,179) in RGB space is the tint of blue. It has hue angle of 207.69 degrees, value = 70 and saturation = 15. #99a7b3 can be obtained by mixing 4 colors: 1 drop of red, 3 drops of blue, 1 drop of green, 5 drops of white.
Nearest safe hex - #9999cc. Below you can see the block with #99a7b3 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #99a7b3 to the mixer and play with it.