Hex #408fa0 or rgb(64,143,160) in RGB space is the tint of bluish cian. It has hue angle of 190.63 degrees, value = 63 and saturation = 60. #408fa0 can be obtained by mixing 4 colors: 2 drops of magenta, 1 drop of blue, 3 drops of cyan, 2 drops of green.
Nearest safe hex - #339999. Below you can see the block with #408fa0 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #408fa0 to the mixer and play with it.