Hex #00978e or rgb(0,151,142) in RGB space is the tint of cyan. It has hue angle of 176.42 degrees, value = 59 and saturation = 100. #00978e can be obtained by mixing 4 colors: 5 drops of blue, 5 drops of cyan, 4 drops of green, 1 drop of black.
Nearest safe hex - #009999. Below you can see the block with #00978e color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #00978e to the mixer and play with it.