Hex #008780 or rgb(0,135,128) in RGB space is the tint of cyan. It has hue angle of 176.89 degrees, value = 53 and saturation = 100. #008780 can be obtained by mixing 3 colors: 3 drops of blue, 1 drop of cyan, 2 drops of green.
Nearest safe hex - #009999. Below you can see the block with #008780 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #008780 to the mixer and play with it.