Hex #2b9eaa or rgb(43,158,170) in RGB space is the tint of cyan. It has hue angle of 185.67 degrees, value = 67 and saturation = 75. #2b9eaa can be obtained by mixing 3 colors: 1 drop of red, 4 drops of cyan, 1 drop of black.
Nearest safe hex - #339999. Below you can see the block with #2b9eaa color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #2b9eaa to the mixer and play with it.