Hex #2b3c47 or rgb(43,60,71) in RGB space is the tint of blue. It has hue angle of 203.57 degrees, value = 28 and saturation = 39. #2b3c47 can be obtained by mixing 4 colors: 2 drops of red, 5 drops of blue, 2 drops of green, 3 drops of black.
Nearest safe hex - #333333. Below you can see the block with #2b3c47 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #2b3c47 to the mixer and play with it.