Hex #556fc0 or rgb(85,111,192) in RGB space is the tint of blue violet. It has hue angle of 225.42 degrees, value = 75 and saturation = 56. #556fc0 can be obtained by mixing 4 colors: 4 drops of magenta, 2 drops of blue, 5 drops of cyan, 1 drop of black.
Nearest safe hex - #6666cc. Below you can see the block with #556fc0 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #556fc0 to the mixer and play with it.