Hex #009cbb or rgb(0,156,187) in RGB space is the tint of bluish cian. It has hue angle of 189.95 degrees, value = 73 and saturation = 100. #009cbb can be obtained by mixing 3 colors: 1 drop of blue, 3 drops of cyan, 1 drop of black.
Nearest safe hex - #0099cc. Below you can see the block with #009cbb color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #009cbb to the mixer and play with it.