Hex #1a3b80 or rgb(26,59,128) in RGB space is the tint of blue violet. It has hue angle of 220.59 degrees, value = 50 and saturation = 80. #1a3b80 can be obtained by mixing 4 colors: 1 drop of magenta, 5 drops of blue, 1 drop of cyan, 3 drops of black.
Nearest safe hex - #333399. Below you can see the block with #1a3b80 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #1a3b80 to the mixer and play with it.