Hi HomeDepotCustomer - Thank you for your review. I'm sorry to hear that the second can you purchased doesn't match the color on your walls! To start, I recommend allowing your last wall to dry for at least 24 hours (this will allow the color to develop closer to the paper swatch). If you walls still don't match after more dry time, it's best to apply an additional coat to the whole room. When working from multiple cans, we also recommend intermixing them to ensure color uniformity. For further assistance with your project, please feel free to reach out to us directly. We'd be happy to help. - Sara