Hex #b178b1 or rgb(177,120,177) in RGB space is the tint of magenta. It has hue angle of 300.00 degrees, value = 69 and saturation = 32. #b178b1 can be obtained by mixing 4 colors: 2 drops of red, 2 drops of magenta, 4 drops of blue, 5 drops of white.
Nearest safe hex - #996699. Below you can see the block with #b178b1 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #b178b1 to the mixer and play with it.