Hex #66369a or rgb(102,54,154) in RGB space is the tint of purple. It has hue angle of 268.80 degrees, value = 60 and saturation = 65. #66369a can be obtained by mixing 3 colors: 4 drops of magenta, 5 drops of blue, 1 drop of green.
Nearest safe hex - #663399. Below you can see the block with #66369a color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #66369a to the mixer and play with it.