Color #5b8c80 name: dark low saturated greenish cian
Hex #5b8c80 or rgb(91,140,128) in RGB space is the tint of greenish cian. It has hue angle of 165.31 degrees, value = 55 and saturation = 35. #5b8c80 can be obtained by mixing 4 colors: 2 drops of magenta, 4 drops of blue, 5 drops of green, 3 drops of white.
Nearest safe hex - #669999. Below you can see the block with #5b8c80 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #5b8c80 to the mixer and play with it.