iPhone 8 stuck in black and white

There are colours on my initial screens and in some apps, but mail, settings, google and maybe more I haven’t opened, are white on black. I’ve played with lots of the other buttons including giving everything different sorts of colour tinges, but that just makes the white on black more difficult to read.

When I did what you suggested the first time there was a tick against the grayscale which wouldn’t change when I touched it, but went when I pressed the colour tinge buttons.

I’ve turned the phone on and off about 4 times too, now have it on charge and will look at it tomorrow morning. It’s 1am here almost.

Yes, that’s it. I worked it out last night as I realised there was a time issue involved and then couldn’t post to say so for some reason.

Something changed on my phone on Sunday. The screen went black and it was impossible to read. It had dimmed completely all on its own. I put that right once I realised what it was. It must also have gone to automatic dark mode at the same time. I don’t think anything else has changed.

thank you very much for your help - I know more about my phone now !

Thank you, but I’ve tried all of those several times, plus the Zoom solution I’ve seen suggested. Nothing works.

That worked !

So same time as last night same thing again - white on black. All steps followed as before, nothing changes. Realise a number of my apps - translation, Covid - are also affected.