Hex #555272 or rgb(85,82,114) in RGB space is the tint of violet. It has hue angle of 245.63 degrees, value = 45 and saturation = 28. #555272 can be obtained by mixing 4 colors: 1 drop of magenta, 1 drop of cyan, 1 drop of white, 3 drops of black.
Nearest safe hex - #666666. Below you can see the block with #555272 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #555272 to the mixer and play with it.