Hex #78b887 or rgb(120,184,135) in RGB space is the tint of bluish green. It has hue angle of 134.06 degrees, value = 72 and saturation = 35. #78b887 can be obtained by mixing 4 colors: 3 drops of red, 4 drops of cyan, 5 drops of green, 5 drops of white.
Nearest safe hex - #66cc99. Below you can see the block with #78b887 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #78b887 to the mixer and play with it.