Hex #55546c or rgb(85,84,108) in RGB space is the tint of violet. It has hue angle of 242.50 degrees, value = 42 and saturation = 22. #55546c can be obtained by mixing 4 colors: 5 drops of magenta, 3 drops of cyan, 3 drops of green, 4 drops of black.
Nearest safe hex - #666666. Below you can see the block with #55546c color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #55546c to the mixer and play with it.