Hex #406c8e or rgb(64,108,142) in RGB space is the tint of blue. It has hue angle of 206.15 degrees, value = 56 and saturation = 55. #406c8e can be obtained by mixing 4 colors: 3 drops of magenta, 4 drops of blue, 2 drops of cyan, 3 drops of green.
Nearest safe hex - #336699. Below you can see the block with #406c8e color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #406c8e to the mixer and play with it.