Hex #777f99 or rgb(119,127,153) in RGB space is the tint of blue violet. It has hue angle of 225.88 degrees, value = 60 and saturation = 22. #777f99 can be obtained by mixing 4 colors: 5 drops of red, 3 drops of blue, 5 drops of cyan, 2 drops of white.
Nearest safe hex - #666699. Below you can see the block with #777f99 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #777f99 to the mixer and play with it.