Hex #558471 or rgb(85,132,113) in RGB space is the tint of teal. It has hue angle of 155.74 degrees, value = 52 and saturation = 36. #558471 can be obtained by mixing 4 colors: 1 drop of yellow, 2 drops of red, 4 drops of cyan, 2 drops of black.
Nearest safe hex - #669966. Below you can see the block with #558471 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #558471 to the mixer and play with it.