Hex #55aab9 or rgb(85,170,185) in RGB space is the tint of bluish cian. It has hue angle of 189.00 degrees, value = 73 and saturation = 54. #55aab9 can be obtained by mixing 4 colors: 1 drop of yellow, 1 drop of magenta, 1 drop of blue, 3 drops of cyan.
Nearest safe hex - #6699cc. Below you can see the block with #55aab9 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #55aab9 to the mixer and play with it.