Hex #4eb39d or rgb(78,179,157) in RGB space is the tint of greenish cian. It has hue angle of 166.93 degrees, value = 70 and saturation = 56. #4eb39d can be obtained by mixing 4 colors: 4 drops of cyan, 2 drops of green, 4 drops of white, 3 drops of black.
Nearest safe hex - #66cc99. Below you can see the block with #4eb39d color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #4eb39d to the mixer and play with it.