Colour Crete SAGE is in fact green, so there are a couple of possibilities to consider. First, please make sure that the gallon can you have has been properly stirred and that ALL pigment on the bottom of the can has been dispersed throughout the can. Colour Crete is also a transparent stain, so the surface you are applying to can have an impact on the final appearance. If your concrete has a yellow tint, then it may change the final color of the stain. To ensure your satisfaction, always treat a small area and allow it to dry thoroughly before staining the entire project.