Hex #1a4f6f or rgb(26,79,111) in RGB space is the tint of blue. It has hue angle of 202.59 degrees, value = 44 and saturation = 77. #1a4f6f can be obtained by mixing 4 colors: 5 drops of blue, 1 drop of green, 1 drop of white, 3 drops of black.
Nearest safe hex - #336666. Below you can see the block with #1a4f6f color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #1a4f6f to the mixer and play with it.