Hex #5b565b or rgb(91,86,91) in RGB space is the tint of magenta. It has hue angle of 300.00 degrees, value = 36 and saturation = 5. #5b565b can be obtained by mixing 4 colors: 4 drops of red, 4 drops of cyan, 1 drop of white, 5 drops of black.
Nearest safe hex - #666666. Below you can see the block with #5b565b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #5b565b to the mixer and play with it.