Hex #556b97 or rgb(85,107,151) in RGB space is the tint of blue violet. It has hue angle of 220.00 degrees, value = 59 and saturation = 44. #556b97 can be obtained by mixing 4 colors: 2 drops of magenta, 3 drops of cyan, 1 drop of white, 3 drops of black.
Nearest safe hex - #666699. Below you can see the block with #556b97 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #556b97 to the mixer and play with it.