Hex #78ac87 or rgb(120,172,135) in RGB space is the tint of bluish green. It has hue angle of 137.31 degrees, value = 67 and saturation = 30. #78ac87 can be obtained by mixing 4 colors: 4 drops of red, 5 drops of cyan, 4 drops of green, 4 drops of white.
Nearest safe hex - #669999. Below you can see the block with #78ac87 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #78ac87 to the mixer and play with it.