Hex #555563 or rgb(85,85,99) in RGB space is the tint of violet. It has hue angle of 240.00 degrees, value = 39 and saturation = 14. #555563 can be obtained by mixing 4 colors: 4 drops of red, 1 drop of blue, 4 drops of cyan, 3 drops of black.
Nearest safe hex - #666666. Below you can see the block with #555563 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #555563 to the mixer and play with it.