Hex #878ed7 or rgb(135,142,215) in RGB space is the tint of violet. It has hue angle of 234.75 degrees, value = 84 and saturation = 37. #878ed7 can be obtained by mixing 4 colors: 5 drops of magenta, 3 drops of blue, 5 drops of cyan, 4 drops of white.
Nearest safe hex - #9999cc. Below you can see the block with #878ed7 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #878ed7 to the mixer and play with it.