Hex #5bb0b6 or rgb(91,176,182) in RGB space is the tint of cyan. It has hue angle of 183.96 degrees, value = 71 and saturation = 50. #5bb0b6 can be obtained by mixing 3 colors: 5 drops of cyan, 5 drops of white, 4 drops of black.
Nearest safe hex - #6699cc. Below you can see the block with #5bb0b6 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #5bb0b6 to the mixer and play with it.