Hex #77be5b or rgb(119,190,91) in RGB space is the tint of grass green. It has hue angle of 103.03 degrees, value = 75 and saturation = 52. #77be5b can be obtained by mixing 4 colors: 5 drops of yellow, 2 drops of magenta, 4 drops of cyan, 4 drops of green.
Nearest safe hex - #66cc66. Below you can see the block with #77be5b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #77be5b to the mixer and play with it.