Hex #5bbfaa or rgb(91,191,170) in RGB space is the tint of greenish cian. It has hue angle of 167.40 degrees, value = 75 and saturation = 52. #5bbfaa can be obtained by mixing 4 colors: 2 drops of magenta, 5 drops of cyan, 4 drops of green, 3 drops of white.
Nearest safe hex - #66cc99. Below you can see the block with #5bbfaa color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #5bbfaa to the mixer and play with it.