Hex #15c879 or rgb(21,200,121) in RGB space is the tint of teal. It has hue angle of 153.52 degrees, value = 78 and saturation = 90. #15c879 can be obtained by mixing 4 colors: 1 drop of yellow, 1 drop of blue, 5 drops of cyan, 5 drops of green.
Nearest safe hex - #00cc66. Below you can see the block with #15c879 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #15c879 to the mixer and play with it.