Hex #405a72 or rgb(64,90,114) in RGB space is the tint of blue. It has hue angle of 208.80 degrees, value = 45 and saturation = 44. #405a72 can be obtained by mixing 3 colors: 3 drops of magenta, 5 drops of blue, 4 drops of green.
Nearest safe hex - #336666. Below you can see the block with #405a72 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #405a72 to the mixer and play with it.