Hex #8b66a3 or rgb(139,102,163) in RGB space is the tint of purple. It has hue angle of 276.39 degrees, value = 64 and saturation = 37. #8b66a3 can be obtained by mixing 4 colors: 2 drops of red, 1 drop of magenta, 5 drops of blue, 3 drops of white.
Nearest safe hex - #996699. Below you can see the block with #8b66a3 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #8b66a3 to the mixer and play with it.