Hex #177d7c or rgb(23,125,124) in RGB space is the tint of cyan. It has hue angle of 179.41 degrees, value = 49 and saturation = 82. #177d7c can be obtained by mixing 4 colors: 1 drop of red, 5 drops of blue, 2 drops of cyan, 3 drops of green.
Nearest safe hex - #006666. Below you can see the block with #177d7c color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #177d7c to the mixer and play with it.