Hex #55a09c or rgb(85,160,156) in RGB space is the tint of cyan. It has hue angle of 176.80 degrees, value = 63 and saturation = 47. #55a09c can be obtained by mixing 3 colors: 5 drops of blue, 3 drops of green, 4 drops of white.
Nearest safe hex - #669999. Below you can see the block with #55a09c color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #55a09c to the mixer and play with it.