Hex #2b5b8e or rgb(43,91,142) in RGB space is the tint of blue. It has hue angle of 210.91 degrees, value = 56 and saturation = 70. #2b5b8e can be obtained by mixing 4 colors: 1 drop of magenta, 1 drop of blue, 2 drops of cyan, 2 drops of black.
Nearest safe hex - #336699. Below you can see the block with #2b5b8e color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #2b5b8e to the mixer and play with it.