Hex #006f6b or rgb(0,111,107) in RGB space is the tint of cyan. It has hue angle of 177.84 degrees, value = 44 and saturation = 100. #006f6b can be obtained by mixing 4 colors: 4 drops of blue, 4 drops of cyan, 3 drops of green, 5 drops of black.
Nearest safe hex - #006666. Below you can see the block with #006f6b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #006f6b to the mixer and play with it.