Hex #55a5b2 or rgb(85,165,178) in RGB space is the tint of bluish cian. It has hue angle of 188.39 degrees, value = 70 and saturation = 52. #55a5b2 can be obtained by mixing 4 colors: 5 drops of blue, 1 drop of cyan, 2 drops of green, 4 drops of white.
Nearest safe hex - #669999. Below you can see the block with #55a5b2 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #55a5b2 to the mixer and play with it.