Hex #778e8e or rgb(119,142,142) in RGB space is the tint of cyan. It has hue angle of 180.00 degrees, value = 56 and saturation = 16. #778e8e can be obtained by mixing 4 colors: 5 drops of magenta, 3 drops of cyan, 5 drops of green, 2 drops of white.
Nearest safe hex - #669999. Below you can see the block with #778e8e color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #778e8e to the mixer and play with it.