Hex #0068ab or rgb(0,104,171) in RGB space is the tint of blue. It has hue angle of 203.51 degrees, value = 67 and saturation = 100. #0068ab can be obtained by mixing 3 colors: 5 drops of blue, 2 drops of cyan, 1 drop of black.
Nearest safe hex - #006699. Below you can see the block with #0068ab color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #0068ab to the mixer and play with it.