Hex #008cb3 or rgb(0,140,179) in RGB space is the tint of bluish cian. It has hue angle of 193.07 degrees, value = 70 and saturation = 100. #008cb3 can be obtained by mixing 3 colors: 3 drops of blue, 5 drops of cyan, 2 drops of black.
Nearest safe hex - #0099cc. Below you can see the block with #008cb3 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #008cb3 to the mixer and play with it.