Hex #55b0aa or rgb(85,176,170) in RGB space is the tint of cyan. It has hue angle of 176.04 degrees, value = 69 and saturation = 52. #55b0aa can be obtained by mixing 4 colors: 5 drops of cyan, 1 drop of green, 5 drops of white, 4 drops of black.
Nearest safe hex - #669999. Below you can see the block with #55b0aa color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #55b0aa to the mixer and play with it.