Hex #66215e or rgb(102,33,94) in RGB space is the tint of magenta. It has hue angle of 306.96 degrees, value = 40 and saturation = 68. #66215e can be obtained by mixing 4 colors: 3 drops of magenta, 1 drop of blue, 1 drop of white, 5 drops of black.
Nearest safe hex - #663366. Below you can see the block with #66215e color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #66215e to the mixer and play with it.