Hex #2b5e72 or rgb(43,94,114) in RGB space is the tint of bluish cian. It has hue angle of 196.90 degrees, value = 45 and saturation = 62. #2b5e72 can be obtained by mixing 4 colors: 1 drop of blue, 1 drop of cyan, 1 drop of white, 3 drops of black.
Nearest safe hex - #336666. Below you can see the block with #2b5e72 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #2b5e72 to the mixer and play with it.