Hex #175c4e or rgb(23,92,78) in RGB space is the tint of greenish cian. It has hue angle of 167.83 degrees, value = 36 and saturation = 75. #175c4e can be obtained by mixing 4 colors: 1 drop of magenta, 4 drops of blue, 4 drops of green, 2 drops of black.
Nearest safe hex - #006666. Below you can see the block with #175c4e color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #175c4e to the mixer and play with it.