I’m slightly colour blind and have an app on my phone that can simulate my deficiency. I take a photo and it shows the views side by side. I adjust it til they look the same and then show my wife (with her stupid perfect colour vision) and she can describe the difference in what I’m seeing.
On rare occasions she says what I’m seeing looks better, so it’s not all bad
I use this one https://play.google.com/store/apps/details?id=asada0.android.cvsimulator but a search for colour blind on play yields a few
Top and bottom look the same to me, I am protan colour blind, red deficient. I see some red, but not all
A search on play for colour blind has a few but I use this one https://play.google.com/store/apps/details?id=asada0.android.cvsimulator