Hex #5597d0 or rgb(85,151,208) in RGB space is the tint of blue. It has hue angle of 207.80 degrees, value = 82 and saturation = 59. #5597d0 can be obtained by mixing 3 colors: 5 drops of blue, 1 drop of cyan, 3 drops of white.
Nearest safe hex - #6699cc. Below you can see the block with #5597d0 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #5597d0 to the mixer and play with it.