Hex #665767 or rgb(102,87,103) in RGB space is the tint of magenta. It has hue angle of 296.25 degrees, value = 40 and saturation = 16. #665767 can be obtained by mixing 3 colors: 2 drops of magenta, 1 drop of blue, 2 drops of green.
Nearest safe hex - #666666. Below you can see the block with #665767 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #665767 to the mixer and play with it.