Hex #337899 or rgb(51,120,153) in RGB space is the tint of bluish cian. It has hue angle of 199.41 degrees, value = 60 and saturation = 67. #337899 can be obtained by mixing 4 colors: 3 drops of blue, 2 drops of cyan, 2 drops of white, 3 drops of black.
Nearest safe hex - #336699. Below you can see the block with #337899 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #337899 to the mixer and play with it.