Hex #275990 or rgb(39,89,144) in RGB space is the tint of blue. It has hue angle of 211.43 degrees, value = 56 and saturation = 73. #275990 can be obtained by mixing 4 colors: 2 drops of magenta, 3 drops of blue, 4 drops of cyan, 4 drops of black.
Nearest safe hex - #336699. Below you can see the block with #275990 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #275990 to the mixer and play with it.