Hex #55d4c7 or rgb(85,212,199) in RGB space is the tint of cyan. It has hue angle of 173.86 degrees, value = 83 and saturation = 60. #55d4c7 can be obtained by mixing 4 colors: 1 drop of yellow, 1 drop of blue, 3 drops of cyan, 1 drop of white.
Nearest safe hex - #66cccc. Below you can see the block with #55d4c7 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #55d4c7 to the mixer and play with it.