Hex #2b4f72 or rgb(43,79,114) in RGB space is the tint of blue. It has hue angle of 209.58 degrees, value = 45 and saturation = 62. #2b4f72 can be obtained by mixing 3 colors: 1 drop of magenta, 2 drops of cyan, 3 drops of black.
Nearest safe hex - #336666. Below you can see the block with #2b4f72 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #2b4f72 to the mixer and play with it.