Hex #788a7d or rgb(120,138,125) in RGB space is the tint of bluish green. It has hue angle of 136.67 degrees, value = 54 and saturation = 13. #788a7d can be obtained by mixing 4 colors: 3 drops of red, 5 drops of blue, 4 drops of green, 5 drops of white.
Nearest safe hex - #669966. Below you can see the block with #788a7d color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #788a7d to the mixer and play with it.