Hex #50b09f or rgb(80,176,159) in RGB space is the tint of greenish cian. It has hue angle of 169.38 degrees, value = 69 and saturation = 55. #50b09f can be obtained by mixing 4 colors: 5 drops of cyan, 2 drops of green, 5 drops of white, 4 drops of black.
Nearest safe hex - #669999. Below you can see the block with #50b09f color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #50b09f to the mixer and play with it.