What happens when you text someone who has you blocked

Texting someone who's blocked you works as you would expect. The message sends as normal, and you don't get an error message. This is no help at all for clues. If you have an iPhone and try to send an iMessage to someone who has blocked you, it will remain blue (which means it's still an iMessage).

So Yes, you can surely text someone you have blocked. Because blocking someone means making them unable to text you, however, you will still be able to text them.