Hex #339cdd or rgb(51,156,221) in RGB space is the tint of blue. It has hue angle of 202.94 degrees, value = 87 and saturation = 77. #339cdd can be obtained by mixing 3 colors: 1 drop of magenta, 1 drop of blue, 3 drops of cyan.
Nearest safe hex - #3399cc. Below you can see the block with #339cdd color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #339cdd to the mixer and play with it.