Hex #718eaf or rgb(113,142,175) in RGB space is the tint of blue. It has hue angle of 211.94 degrees, value = 69 and saturation = 35. #718eaf can be obtained by mixing 4 colors: 4 drops of red, 5 drops of blue, 5 drops of cyan, 4 drops of white.
Nearest safe hex - #669999. Below you can see the block with #718eaf color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #718eaf to the mixer and play with it.