Hex #554f55 or rgb(85,79,85) in RGB space is the tint of magenta. It has hue angle of 300.00 degrees, value = 33 and saturation = 7. #554f55 can be obtained by mixing 3 colors: 1 drop of red, 1 drop of cyan, 1 drop of black.
Nearest safe hex - #666666. Below you can see the block with #554f55 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #554f55 to the mixer and play with it.