Hex #551264 or rgb(85,18,100) in RGB space is the tint of purple magenta. It has hue angle of 289.02 degrees, value = 39 and saturation = 82. #551264 can be obtained by mixing 3 colors: 4 drops of magenta, 3 drops of blue, 5 drops of black.
Nearest safe hex - #660066. Below you can see the block with #551264 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #551264 to the mixer and play with it.