Hex #278076 or rgb(39,128,118) in RGB space is the tint of cyan. It has hue angle of 173.26 degrees, value = 50 and saturation = 70. #278076 can be obtained by mixing 4 colors: 2 drops of magenta, 4 drops of blue, 2 drops of cyan, 5 drops of green.
Nearest safe hex - #339966. Below you can see the block with #278076 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #278076 to the mixer and play with it.