It depends on what your other abilities are. If you have a solidly related creative skill such as design work or CSS, learning to code can get you to the point where you can contribute to a startup. If your skills lie in business or similar backgrounds, you're not going to be much of a technical founder under most circumstances.

Either way, if you're not already a code, you either need to put in a lot of time learning to engineer software, or look for a co-founder. The latter is usually best.