Hex #666dbc or rgb(102,109,188) in RGB space is the tint of violet. It has hue angle of 235.12 degrees, value = 74 and saturation = 46. #666dbc can be obtained by mixing 4 colors: 1 drop of red, 3 drops of magenta, 2 drops of blue, 4 drops of cyan.
Nearest safe hex - #6666cc. Below you can see the block with #666dbc color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #666dbc to the mixer and play with it.