Hex #718fa1 or rgb(113,143,161) in RGB space is the tint of blue. It has hue angle of 202.50 degrees, value = 63 and saturation = 30. #718fa1 can be obtained by mixing 4 colors: 1 drop of yellow, 4 drops of blue, 3 drops of white, 1 drop of black.
Nearest safe hex - #669999. Below you can see the block with #718fa1 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #718fa1 to the mixer and play with it.