Every time a home project pops up, there’s a decision to make: Do we tackle this ourselves, or is it worth hiring a pro? If you’re a hands-on type of person, it can be tempting to DIY everything—but just because you can doesn’t always mean you should.

I hate to break it to you, but that paint color you fell in love with on Instagram or Pinterest? The one you painstakingly tracked down by name and brand? It probably won’t look anything like that on your wall. (Same goes for catalog and magazine photos. The color just won’t match.) Here’s why.