Hex #66508e or rgb(102,80,142) in RGB space is the tint of purple violet. It has hue angle of 261.29 degrees, value = 56 and saturation = 44. #66508e can be obtained by mixing 4 colors: 5 drops of magenta, 4 drops of cyan, 1 drop of white, 5 drops of black.
Nearest safe hex - #666699. Below you can see the block with #66508e color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #66508e to the mixer and play with it.