Hex #878ad3 or rgb(135,138,211) in RGB space is the tint of violet. It has hue angle of 237.63 degrees, value = 83 and saturation = 36. #878ad3 can be obtained by mixing 4 colors: 4 drops of magenta, 5 drops of blue, 3 drops of cyan, 5 drops of white.
Nearest safe hex - #9999cc. Below you can see the block with #878ad3 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #878ad3 to the mixer and play with it.