Hex #797890 or rgb(121,120,144) in RGB space is the tint of violet. It has hue angle of 242.50 degrees, value = 56 and saturation = 17. #797890 can be obtained by mixing 4 colors: 5 drops of magenta, 5 drops of blue, 5 drops of green, 4 drops of white.
Nearest safe hex - #666699. Below you can see the block with #797890 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #797890 to the mixer and play with it.