Hex #506c85 or rgb(80,108,133) in RGB space is the tint of blue. It has hue angle of 208.30 degrees, value = 52 and saturation = 40. #506c85 can be obtained by mixing 4 colors: 5 drops of magenta, 5 drops of cyan, 3 drops of green, 3 drops of black.
Nearest safe hex - #666699. Below you can see the block with #506c85 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #506c85 to the mixer and play with it.