Hex #87ab4b or rgb(135,171,75) in RGB space is the tint of olive. It has hue angle of 82.50 degrees, value = 67 and saturation = 56. #87ab4b can be obtained by mixing 4 colors: 5 drops of yellow, 4 drops of red, 5 drops of cyan, 3 drops of green.
Nearest safe hex - #999933. Below you can see the block with #87ab4b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #87ab4b to the mixer and play with it.