Hex #55abd2 or rgb(85,171,210) in RGB space is the tint of bluish cian. It has hue angle of 198.72 degrees, value = 82 and saturation = 60. #55abd2 can be obtained by mixing 4 colors: 1 drop of red, 5 drops of blue, 5 drops of cyan, 4 drops of white.
Nearest safe hex - #6699cc. Below you can see the block with #55abd2 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #55abd2 to the mixer and play with it.