Hex #559095 or rgb(85,144,149) in RGB space is the tint of cyan. It has hue angle of 184.69 degrees, value = 58 and saturation = 43. #559095 can be obtained by mixing 3 colors: 3 drops of cyan, 4 drops of white, 5 drops of black.
Nearest safe hex - #669999. Below you can see the block with #559095 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #559095 to the mixer and play with it.