Hex #6988aa or rgb(105,136,170) in RGB space is the tint of blue. It has hue angle of 211.38 degrees, value = 67 and saturation = 38. #6988aa can be obtained by mixing 4 colors: 4 drops of red, 5 drops of blue, 5 drops of cyan, 3 drops of white.
Nearest safe hex - #669999. Below you can see the block with #6988aa color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #6988aa to the mixer and play with it.