Hex #77e066 or rgb(119,224,102) in RGB space is the tint of grass green. It has hue angle of 111.64 degrees, value = 88 and saturation = 54. #77e066 can be obtained by mixing 4 colors: 5 drops of yellow, 4 drops of cyan, 4 drops of green, 2 drops of white.
Nearest safe hex - #66cc66. Below you can see the block with #77e066 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #77e066 to the mixer and play with it.