Hex #5bbdb6 or rgb(91,189,182) in RGB space is the tint of cyan. It has hue angle of 175.71 degrees, value = 74 and saturation = 52. #5bbdb6 can be obtained by mixing 4 colors: 5 drops of cyan, 1 drop of green, 5 drops of white, 3 drops of black.
Nearest safe hex - #66cccc. Below you can see the block with #5bbdb6 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #5bbdb6 to the mixer and play with it.