Hex #87b73c or rgb(135,183,60) in RGB space is the tint of olive. It has hue angle of 83.41 degrees, value = 72 and saturation = 67. #87b73c can be obtained by mixing 4 colors: 5 drops of yellow, 5 drops of green, 4 drops of white, 3 drops of black.
Nearest safe hex - #99cc33. Below you can see the block with #87b73c color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #87b73c to the mixer and play with it.