Hex #2b5b72 or rgb(43,91,114) in RGB space is the tint of bluish cian. It has hue angle of 199.44 degrees, value = 45 and saturation = 62. #2b5b72 can be obtained by mixing 4 colors: 1 drop of red, 1 drop of blue, 2 drops of cyan, 2 drops of black.
Nearest safe hex - #336666. Below you can see the block with #2b5b72 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #2b5b72 to the mixer and play with it.