Hex #559c95 or rgb(85,156,149) in RGB space is the tint of cyan. It has hue angle of 174.08 degrees, value = 61 and saturation = 46. #559c95 can be obtained by mixing 4 colors: 2 drops of yellow, 2 drops of red, 3 drops of blue, 5 drops of cyan.
Nearest safe hex - #669999. Below you can see the block with #559c95 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #559c95 to the mixer and play with it.