Hex #8b429b or rgb(139,66,155) in RGB space is the tint of purple magenta. It has hue angle of 289.21 degrees, value = 61 and saturation = 57. #8b429b can be obtained by mixing 4 colors: 4 drops of magenta, 3 drops of blue, 2 drops of white, 2 drops of black.
Nearest safe hex - #993399. Below you can see the block with #8b429b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #8b429b to the mixer and play with it.