Hex #555379 or rgb(85,83,121) in RGB space is the tint of violet. It has hue angle of 243.16 degrees, value = 47 and saturation = 31. #555379 can be obtained by mixing 4 colors: 4 drops of red, 4 drops of blue, 3 drops of cyan, 1 drop of black.
Nearest safe hex - #666666. Below you can see the block with #555379 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #555379 to the mixer and play with it.