Warm, cool, neutral or bold — a room’s color is the foundation of any great design style. Picking paint colors on your own can feel overwhelming. Staring at rows of paint chips in your local home improvement store, it’s easy to feel lost and uninformed. It’s also easy to love a color in store, but hate the way it turns out once it’s on your wall. If you’re trying to match an old color, it can get even more complicated. Here to help are a handful of smart sensors and apps. With a little tech, you can confidently wield a paintbrush and add picture perfect color to your home.It’s also easy to love a color in store, but hate the way it turns out once it’s on your wall. If you’re trying to match an old color, it can get even more complicated. Here to help are a handful of smart sensors and apps. With a little tech, you can confidently wield a paintbrush and add picture perfect color to your home.