Hex #879e78 or rgb(135,158,120) in RGB space is the tint of olive. It has hue angle of 96.32 degrees, value = 62 and saturation = 24. #879e78 can be obtained by mixing 4 colors: 5 drops of red, 4 drops of cyan, 4 drops of green, 4 drops of white.
Nearest safe hex - #999966. Below you can see the block with #879e78 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #879e78 to the mixer and play with it.