Hex #505770 or rgb(80,87,112) in RGB space is the tint of blue violet. It has hue angle of 226.88 degrees, value = 44 and saturation = 29. #505770 can be obtained by mixing 4 colors: 5 drops of red, 3 drops of blue, 5 drops of cyan, 3 drops of black.
Nearest safe hex - #666666. Below you can see the block with #505770 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #505770 to the mixer and play with it.