Blue to Red exercise

I tried changing from blue to Red but it did not work.

We would first need to know what the challenge name is you are working on and what code you are trying to use. Once we know this information, we can try to give you hints on how to solve on your own.

To enter a code block into the forum, precede it with a line of three backticks and follow it with a line of three backticks to make easier to read. See this post to find the backtick on your keyboard. The “preformatted text” tool in the editor (</>) will also add backticks around text.