Hex #718fbd or rgb(113,143,189) in RGB space is the tint of blue. It has hue angle of 216.32 degrees, value = 74 and saturation = 40. #718fbd can be obtained by mixing 4 colors: 1 drop of red, 4 drops of blue, 1 drop of cyan, 3 drops of white.
Nearest safe hex - #6699cc. Below you can see the block with #718fbd color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #718fbd to the mixer and play with it.