Hex #2b4256 or rgb(43,66,86) in RGB space is the tint of blue. It has hue angle of 207.91 degrees, value = 34 and saturation = 50. #2b4256 can be obtained by mixing 4 colors: 1 drop of red, 3 drops of blue, 1 drop of green, 1 drop of black.
Nearest safe hex - #333366. Below you can see the block with #2b4256 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #2b4256 to the mixer and play with it.