Hex #661578 or rgb(102,21,120) in RGB space is the tint of purple magenta. It has hue angle of 289.09 degrees, value = 47 and saturation = 83. #661578 can be obtained by mixing 3 colors: 4 drops of magenta, 3 drops of blue, 3 drops of black.
Nearest safe hex - #660066. Below you can see the block with #661578 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #661578 to the mixer and play with it.