Hex #55a8e3 or rgb(85,168,227) in RGB space is the tint of blue. It has hue angle of 204.93 degrees, value = 89 and saturation = 63. #55a8e3 can be obtained by mixing 4 colors: 2 drops of magenta, 1 drop of blue, 5 drops of cyan, 1 drop of white.
Nearest safe hex - #6699cc. Below you can see the block with #55a8e3 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #55a8e3 to the mixer and play with it.