Hex #78659b or rgb(120,101,155) in RGB space is the tint of purple violet. It has hue angle of 261.11 degrees, value = 61 and saturation = 35. #78659b can be obtained by mixing 4 colors: 5 drops of magenta, 4 drops of cyan, 3 drops of white, 5 drops of black.
Nearest safe hex - #666699. Below you can see the block with #78659b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #78659b to the mixer and play with it.