Hex #3b66a4 or rgb(59,102,164) in RGB space is the tint of blue. It has hue angle of 215.43 degrees, value = 64 and saturation = 64. #3b66a4 can be obtained by mixing 4 colors: 3 drops of magenta, 2 drops of blue, 5 drops of cyan, 3 drops of black.
Nearest safe hex - #336699. Below you can see the block with #3b66a4 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #3b66a4 to the mixer and play with it.