Hex #337880 or rgb(51,120,128) in RGB space is the tint of cyan. It has hue angle of 186.23 degrees, value = 50 and saturation = 60. #337880 can be obtained by mixing 4 colors: 1 drop of red, 4 drops of cyan, 1 drop of white, 4 drops of black.
Nearest safe hex - #336699. Below you can see the block with #337880 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #337880 to the mixer and play with it.