Hex #77bb4a or rgb(119,187,74) in RGB space is the tint of olive. It has hue angle of 96.11 degrees, value = 73 and saturation = 60. #77bb4a can be obtained by mixing 4 colors: 5 drops of yellow, 2 drops of magenta, 3 drops of cyan, 5 drops of green.
Nearest safe hex - #66cc33. Below you can see the block with #77bb4a color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #77bb4a to the mixer and play with it.