Hex #778b39 or rgb(119,139,57) in RGB space is the tint of lime. It has hue angle of 74.63 degrees, value = 55 and saturation = 59. #778b39 can be obtained by mixing 4 colors: 5 drops of yellow, 2 drops of red, 5 drops of blue, 3 drops of green.
Nearest safe hex - #669933. Below you can see the block with #778b39 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #778b39 to the mixer and play with it.