Hex #176c74 or rgb(23,108,116) in RGB space is the tint of cyan. It has hue angle of 185.16 degrees, value = 45 and saturation = 80. #176c74 can be obtained by mixing 3 colors: 1 drop of red, 5 drops of cyan, 5 drops of black.
Nearest safe hex - #006666. Below you can see the block with #176c74 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #176c74 to the mixer and play with it.