Hex #6d4b8c or rgb(109,75,140) in RGB space is the tint of purple. It has hue angle of 271.38 degrees, value = 55 and saturation = 46. #6d4b8c can be obtained by mixing 4 colors: 3 drops of magenta, 4 drops of blue, 3 drops of white, 4 drops of black.
Nearest safe hex - #663399. Below you can see the block with #6d4b8c color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #6d4b8c to the mixer and play with it.