I have two custom post types

1. colors
2. shapes

I have a post called “red” under the custom post type “colors”. The default URL for this post would be

example.com/colors/red

Now I want to make it accessible from the following URL as well

example.com/shapes/red

The closest I came with is to add a filter to change_404_template (as I receive a 404 for above url) and forcefully inject the single.php file with some hacky code.

Is there a way more standard method to do this ?