Hex #5bb49e or rgb(91,180,158) in RGB space is the tint of greenish cian. It has hue angle of 165.17 degrees, value = 71 and saturation = 49. #5bb49e can be obtained by mixing 4 colors: 4 drops of blue, 1 drop of cyan, 4 drops of green, 5 drops of white.
Nearest safe hex - #66cc99. Below you can see the block with #5bb49e color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #5bb49e to the mixer and play with it.