Hex #008898 or rgb(0,136,152) in RGB space is the tint of cyan. It has hue angle of 186.32 degrees, value = 60 and saturation = 100. #008898 can be obtained by mixing 4 colors: 5 drops of blue, 5 drops of cyan, 2 drops of green, 2 drops of black.
Nearest safe hex - #009999. Below you can see the block with #008898 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #008898 to the mixer and play with it.