Hex #39868e or rgb(57,134,142) in RGB space is the tint of cyan. It has hue angle of 185.65 degrees, value = 56 and saturation = 60. #39868e can be obtained by mixing 4 colors: 1 drop of red, 4 drops of cyan, 1 drop of white, 3 drops of black.
Nearest safe hex - #339999. Below you can see the block with #39868e color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #39868e to the mixer and play with it.