Hex #5597b6 or rgb(85,151,182) in RGB space is the tint of bluish cian. It has hue angle of 199.18 degrees, value = 71 and saturation = 53. #5597b6 can be obtained by mixing 4 colors: 4 drops of blue, 3 drops of cyan, 5 drops of white, 3 drops of black.
Nearest safe hex - #6699cc. Below you can see the block with #5597b6 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #5597b6 to the mixer and play with it.