Paint colour suggestions to link oak flooring upstairs with neutral tiles

[7238SM]

Upstairs has light, oak flooring and down stairs greige/white tiles. These are the same colours (minus the darker Egyptian cotton and the palest timeless which I haven't painted down stairs). I realise the colours online aren't representative either, but I'm loosing the will so any help appreciated.
Top to bottom on the 2nd pic, all Dulux:

White Almond
Natural Calico
Natural Hessian
Just Walnut
Nutmeg White
Welsh Flint

Has anyone used these colours?

Natural Calico has a slightly pink undertone and so does Nutmeg white (I did not like the effect of the latter with a pale oiled oak floor and changed it to Jasmine White) I would go with a slightly more orange or tan undertone if that is your flooring undertone or the flooring will leap out. Natural Calico looked beautiful with my pale tan/orange washed cork flooring if that is any help to you.

You need to get A4 samples and hold them up against tiles and wood. Kylie M interiors (Canada)blogger which I recently discovered has lots of examples of matching painttones with tiles and wood. I then convert Sherwin williams with e paint converter ....I've learnt so much! It's the greiges which gets you muddled !

You have to decide whether your greige tiles have a sandy yellowy undertone a grey green undertone or a pink undertone. If you put your five A 4 samples separately against the tiles you will see immediately which ones clash (IE too contrasting in tone or slightly "off")

Dulux Heritage also has in its chart quite a good scale of the colours going from pale to dark in each group and you can see the apparently similar greiges all leaning to different families of colours, blue /yellow/pink/red orange /purple.

I've also noticed over a few rooms that you want the floors darker or at least warmer than the walls. So you don't want a light warm cream on walls and a less "warm" grey brown floor unless the grey brown is a bit darker than the walls in some way. It feels odd for some reason.

@Nettleskeins Thank you so much. All your info is very useful 😊