Hex #55e5bf or rgb(85,229,191) in RGB space is the tint of greenish cian. It has hue angle of 164.17 degrees, value = 90 and saturation = 63. #55e5bf can be obtained by mixing 3 colors: 5 drops of cyan, 3 drops of green, 4 drops of white.
Nearest safe hex - #66cccc. Below you can see the block with #55e5bf color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #55e5bf to the mixer and play with it.