Hex #6678b3 or rgb(102,120,179) in RGB space is the tint of blue violet. It has hue angle of 225.97 degrees, value = 70 and saturation = 43. #6678b3 can be obtained by mixing 4 colors: 3 drops of magenta, 4 drops of cyan, 1 drop of white, 2 drops of black.
Nearest safe hex - #6666cc. Below you can see the block with #6678b3 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #6678b3 to the mixer and play with it.