Hex #666ec4 or rgb(102,110,196) in RGB space is the tint of violet. It has hue angle of 234.89 degrees, value = 77 and saturation = 48. #666ec4 can be obtained by mixing 4 colors: 2 drops of magenta, 5 drops of blue, 1 drop of cyan, 2 drops of white.
Nearest safe hex - #6666cc. Below you can see the block with #666ec4 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #666ec4 to the mixer and play with it.