Hex #2b475d or rgb(43,71,93) in RGB space is the tint of blue. It has hue angle of 206.40 degrees, value = 36 and saturation = 54. #2b475d can be obtained by mixing 4 colors: 1 drop of yellow, 5 drops of blue, 1 drop of white, 5 drops of black.
Nearest safe hex - #333366. Below you can see the block with #2b475d color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #2b475d to the mixer and play with it.