Hex #5b9780 or rgb(91,151,128) in RGB space is the tint of teal. It has hue angle of 157.00 degrees, value = 59 and saturation = 40. #5b9780 can be obtained by mixing 4 colors: 2 drops of cyan, 2 drops of green, 5 drops of white, 5 drops of black.
Nearest safe hex - #669999. Below you can see the block with #5b9780 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #5b9780 to the mixer and play with it.