Hex #558568 or rgb(85,133,104) in RGB space is the tint of teal. It has hue angle of 143.75 degrees, value = 52 and saturation = 36. #558568 can be obtained by mixing 4 colors: 1 drop of blue, 2 drops of green, 3 drops of white, 3 drops of black.
Nearest safe hex - #669966. Below you can see the block with #558568 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #558568 to the mixer and play with it.