Hex #008b80 or rgb(0,139,128) in RGB space is the tint of cyan. It has hue angle of 175.25 degrees, value = 55 and saturation = 100. #008b80 can be obtained by mixing 4 colors: 3 drops of blue, 5 drops of cyan, 3 drops of green, 3 drops of black.
Nearest safe hex - #009999. Below you can see the block with #008b80 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #008b80 to the mixer and play with it.