Hex #6683aa or rgb(102,131,170) in RGB space is the tint of blue. It has hue angle of 214.41 degrees, value = 67 and saturation = 40. #6683aa can be obtained by mixing 3 colors: 2 drops of magenta, 2 drops of cyan, 1 drop of green.
Nearest safe hex - #669999. Below you can see the block with #6683aa color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #6683aa to the mixer and play with it.