Colour matching with Zinsser perma white bathroom paint

[GF79]

We've finally chosen a paint colour (a Dulux trade one, the top one, FYI) but we've not had great success with Dulux bathroom paint before (peeling etc) so have been advised to use a Zinsser one (perma white, that can apparently be tinted). However, we've just had an exterior Zinsser paint tinted using another Dulux trade code and the match isn't great. Does anyone have any suggestions? Are there different colour codes (eg RAL) where the match is likely to be better or is it always a risk?

I've spent waaaaaaay too much much thinking about bathroom paint colours and would be pretty gutted if the match wasn't right as it's to go with existing tiles that we can't afford to change.

Thanks in advance!

There are a couple of websites that compare different paint brands and match the colours.
https://www.e-paint.co.uk/colour-alternatives.asp Is one I have used.
you can enter the RAL code or other code and it will find the closest in each brand.

or this one
https://encycolorpedia.com/76908d

Ah thanks but it doesn't have that specific code for some reason!

Sorry this had only just come through for some reason, thank you!