Hex #337faa or rgb(51,127,170) in RGB space is the tint of bluish cian. It has hue angle of 201.68 degrees, value = 67 and saturation = 70. #337faa can be obtained by mixing 4 colors: 2 drops of blue, 1 drop of cyan, 1 drop of white, 1 drop of black.
Nearest safe hex - #336699. Below you can see the block with #337faa color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #337faa to the mixer and play with it.