Hex #504f6b or rgb(80,79,107) in RGB space is the tint of violet. It has hue angle of 242.14 degrees, value = 42 and saturation = 26. #504f6b can be obtained by mixing 4 colors: 5 drops of magenta, 5 drops of blue, 5 drops of green, 1 drop of black.
Nearest safe hex - #666666. Below you can see the block with #504f6b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #504f6b to the mixer and play with it.