Hex #504d6b or rgb(80,77,107) in RGB space is the tint of violet. It has hue angle of 246.00 degrees, value = 42 and saturation = 28. #504d6b can be obtained by mixing 4 colors: 5 drops of red, 4 drops of blue, 4 drops of cyan, 3 drops of black.
Nearest safe hex - #666666. Below you can see the block with #504d6b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #504d6b to the mixer and play with it.