Hex #558371 or rgb(85,131,113) in RGB space is the tint of teal. It has hue angle of 156.52 degrees, value = 51 and saturation = 35. #558371 can be obtained by mixing 4 colors: 1 drop of cyan, 1 drop of green, 3 drops of white, 4 drops of black.
Nearest safe hex - #669966. Below you can see the block with #558371 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #558371 to the mixer and play with it.