Hex #78bbb4 or rgb(120,187,180) in RGB space is the tint of cyan. It has hue angle of 173.73 degrees, value = 73 and saturation = 36. #78bbb4 can be obtained by mixing 4 colors: 3 drops of magenta, 5 drops of cyan, 4 drops of green, 5 drops of white.
Nearest safe hex - #66cccc. Below you can see the block with #78bbb4 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #78bbb4 to the mixer and play with it.