Hex #778555 or rgb(119,133,85) in RGB space is the tint of lime. It has hue angle of 77.50 degrees, value = 52 and saturation = 36. #778555 can be obtained by mixing 4 colors: 2 drops of red, 4 drops of green, 5 drops of white, 4 drops of black.
Nearest safe hex - #669966. Below you can see the block with #778555 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #778555 to the mixer and play with it.