Hex #2b4547 or rgb(43,69,71) in RGB space is the tint of cyan. It has hue angle of 184.29 degrees, value = 28 and saturation = 39. #2b4547 can be obtained by mixing 3 colors: 2 drops of yellow, 5 drops of blue, 5 drops of black.
Nearest safe hex - #333333. Below you can see the block with #2b4547 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #2b4547 to the mixer and play with it.