Hex #6991aa or rgb(105,145,170) in RGB space is the tint of blue. It has hue angle of 203.08 degrees, value = 67 and saturation = 38. #6991aa can be obtained by mixing 4 colors: 2 drops of magenta, 5 drops of cyan, 5 drops of white, 5 drops of black.
Nearest safe hex - #669999. Below you can see the block with #6991aa color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #6991aa to the mixer and play with it.