Hex #5b5f80 or rgb(91,95,128) in RGB space is the tint of violet. It has hue angle of 233.51 degrees, value = 50 and saturation = 29. #5b5f80 can be obtained by mixing 4 colors: 4 drops of magenta, 5 drops of blue, 4 drops of green, 1 drop of white.
Nearest safe hex - #666699. Below you can see the block with #5b5f80 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #5b5f80 to the mixer and play with it.