Hex #55caaa or rgb(85,202,170) in RGB space is the tint of greenish cian. It has hue angle of 163.59 degrees, value = 79 and saturation = 58. #55caaa can be obtained by mixing 4 colors: 1 drop of red, 4 drops of cyan, 2 drops of green, 2 drops of white.
Nearest safe hex - #66cc99. Below you can see the block with #55caaa color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #55caaa to the mixer and play with it.