Hex #407fb5 or rgb(64,127,181) in RGB space is the tint of blue. It has hue angle of 207.69 degrees, value = 71 and saturation = 65. #407fb5 can be obtained by mixing 4 colors: 1 drop of red, 4 drops of blue, 2 drops of cyan, 1 drop of white.
Nearest safe hex - #3366cc. Below you can see the block with #407fb5 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #407fb5 to the mixer and play with it.