Hex #80a099 or rgb(128,160,153) in RGB space is the tint of greenish cian. It has hue angle of 166.88 degrees, value = 63 and saturation = 20. #80a099 can be obtained by mixing 4 colors: 1 drop of red, 3 drops of blue, 2 drops of green, 4 drops of white.
Nearest safe hex - #999999. Below you can see the block with #80a099 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #80a099 to the mixer and play with it.