Hex #378792 or rgb(55,135,146) in RGB space is the tint of cyan. It has hue angle of 187.25 degrees, value = 57 and saturation = 62. #378792 can be obtained by mixing 4 colors: 3 drops of magenta, 3 drops of blue, 4 drops of cyan, 4 drops of green.
Nearest safe hex - #339999. Below you can see the block with #378792 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #378792 to the mixer and play with it.