Hex #556e5f or rgb(85,110,95) in RGB space is the tint of teal. It has hue angle of 144.00 degrees, value = 43 and saturation = 23. #556e5f can be obtained by mixing 4 colors: 1 drop of yellow, 2 drops of magenta, 3 drops of blue, 3 drops of green.
Nearest safe hex - #666666. Below you can see the block with #556e5f color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #556e5f to the mixer and play with it.