Hex #339188 or rgb(51,145,136) in RGB space is the tint of cyan. It has hue angle of 174.26 degrees, value = 57 and saturation = 65. #339188 can be obtained by mixing 4 colors: 1 drop of red, 1 drop of blue, 2 drops of cyan, 1 drop of green.
Nearest safe hex - #339999. Below you can see the block with #339188 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #339188 to the mixer and play with it.