Hex #78b987 or rgb(120,185,135) in RGB space is the tint of bluish green. It has hue angle of 133.85 degrees, value = 73 and saturation = 35. #78b987 can be obtained by mixing 4 colors: 4 drops of yellow, 5 drops of cyan, 4 drops of white, 4 drops of black.
Nearest safe hex - #66cc99. Below you can see the block with #78b987 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #78b987 to the mixer and play with it.