Hex #406c87 or rgb(64,108,135) in RGB space is the tint of blue. It has hue angle of 202.82 degrees, value = 53 and saturation = 53. #406c87 can be obtained by mixing 4 colors: 5 drops of blue, 1 drop of green, 3 drops of white, 3 drops of black.
Nearest safe hex - #336699. Below you can see the block with #406c87 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #406c87 to the mixer and play with it.