Hex #668ad2 or rgb(102,138,210) in RGB space is the tint of blue violet. It has hue angle of 220.00 degrees, value = 82 and saturation = 51. #668ad2 can be obtained by mixing 4 colors: 3 drops of magenta, 5 drops of blue, 4 drops of cyan, 3 drops of white.
Nearest safe hex - #6699cc. Below you can see the block with #668ad2 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #668ad2 to the mixer and play with it.