Hex #55505b or rgb(85,80,91) in RGB space is the tint of purple. It has hue angle of 267.27 degrees, value = 36 and saturation = 12. #55505b can be obtained by mixing 4 colors: 5 drops of magenta, 2 drops of cyan, 4 drops of green, 4 drops of black.
Nearest safe hex - #666666. Below you can see the block with #55505b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #55505b to the mixer and play with it.