Hex #5558a1 or rgb(85,88,161) in RGB space is the tint of violet. It has hue angle of 237.63 degrees, value = 63 and saturation = 47. #5558a1 can be obtained by mixing 4 colors: 2 drops of magenta, 5 drops of blue, 1 drop of green, 1 drop of white.
Nearest safe hex - #666699. Below you can see the block with #5558a1 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #5558a1 to the mixer and play with it.