Hex #124c80 or rgb(18,76,128) in RGB space is the tint of blue. It has hue angle of 208.36 degrees, value = 50 and saturation = 86. #124c80 can be obtained by mixing 4 colors: 1 drop of magenta, 5 drops of blue, 3 drops of cyan, 5 drops of black.
Nearest safe hex - #003399. Below you can see the block with #124c80 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #124c80 to the mixer and play with it.