Hex #5bbb98 or rgb(91,187,152) in RGB space is the tint of greenish cian. It has hue angle of 158.13 degrees, value = 73 and saturation = 51. #5bbb98 can be obtained by mixing 4 colors: 2 drops of magenta, 4 drops of cyan, 5 drops of green, 3 drops of white.
Nearest safe hex - #66cc99. Below you can see the block with #5bbb98 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #5bbb98 to the mixer and play with it.