Hex #80689b or rgb(128,104,155) in RGB space is the tint of purple. It has hue angle of 268.24 degrees, value = 61 and saturation = 33. #80689b can be obtained by mixing 4 colors: 5 drops of magenta, 5 drops of blue, 3 drops of green, 3 drops of white.
Nearest safe hex - #996699. Below you can see the block with #80689b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #80689b to the mixer and play with it.