Hex #4ec5b1 or rgb(78,197,177) in RGB space is the tint of greenish cian. It has hue angle of 169.92 degrees, value = 77 and saturation = 60. #4ec5b1 can be obtained by mixing 4 colors: 5 drops of cyan, 2 drops of green, 4 drops of white, 2 drops of black.
Nearest safe hex - #66cc99. Below you can see the block with #4ec5b1 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #4ec5b1 to the mixer and play with it.