Hex #66799f or rgb(102,121,159) in RGB space is the tint of blue violet. It has hue angle of 220.00 degrees, value = 62 and saturation = 36. #66799f can be obtained by mixing 4 colors: 4 drops of red, 5 drops of blue, 4 drops of cyan, 2 drops of white.
Nearest safe hex - #666699. Below you can see the block with #66799f color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #66799f to the mixer and play with it.