Hex #6657ab or rgb(102,87,171) in RGB space is the tint of purple violet. It has hue angle of 250.71 degrees, value = 67 and saturation = 49. #6657ab can be obtained by mixing 4 colors: 2 drops of magenta, 5 drops of blue, 2 drops of white, 1 drop of black.
Nearest safe hex - #666699. Below you can see the block with #6657ab color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #6657ab to the mixer and play with it.