Hex #406487 or rgb(64,100,135) in RGB space is the tint of blue. It has hue angle of 209.58 degrees, value = 53 and saturation = 53. #406487 can be obtained by mixing 4 colors: 2 drops of magenta, 4 drops of cyan, 1 drop of white, 5 drops of black.
Nearest safe hex - #336699. Below you can see the block with #406487 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #406487 to the mixer and play with it.