Hex #5b558c or rgb(91,85,140) in RGB space is the tint of violet. It has hue angle of 246.55 degrees, value = 55 and saturation = 39. #5b558c can be obtained by mixing 4 colors: 1 drop of red, 4 drops of magenta, 5 drops of cyan, 4 drops of black.
Nearest safe hex - #666699. Below you can see the block with #5b558c color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #5b558c to the mixer and play with it.