Hex #40718b or rgb(64,113,139) in RGB space is the tint of bluish cian. It has hue angle of 200.80 degrees, value = 55 and saturation = 54. #40718b can be obtained by mixing 4 colors: 1 drop of magenta, 4 drops of blue, 2 drops of green, 1 drop of white.
Nearest safe hex - #336699. Below you can see the block with #40718b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #40718b to the mixer and play with it.