Hex #2b5379 or rgb(43,83,121) in RGB space is the tint of blue. It has hue angle of 209.23 degrees, value = 47 and saturation = 64. #2b5379 can be obtained by mixing 4 colors: 2 drops of red, 4 drops of blue, 3 drops of cyan, 3 drops of black.
Nearest safe hex - #336666. Below you can see the block with #2b5379 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #2b5379 to the mixer and play with it.