Hex #1a5c91 or rgb(26,92,145) in RGB space is the tint of blue. It has hue angle of 206.72 degrees, value = 57 and saturation = 82. #1a5c91 can be obtained by mixing 4 colors: 1 drop of magenta, 3 drops of blue, 3 drops of cyan, 3 drops of black.
Nearest safe hex - #336699. Below you can see the block with #1a5c91 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #1a5c91 to the mixer and play with it.