Hex #77a355 or rgb(119,163,85) in RGB space is the tint of olive. It has hue angle of 93.85 degrees, value = 64 and saturation = 48. #77a355 can be obtained by mixing 4 colors: 3 drops of yellow, 4 drops of red, 5 drops of cyan, 3 drops of green.
Nearest safe hex - #669966. Below you can see the block with #77a355 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #77a355 to the mixer and play with it.