How about White? What colour are your cabinets?

Practical functional easy to clean kitchen ... I would bring colour & style in with things like bar stools & kitchen appliances ... It looks as though it connects into a living area ... That is where you can bring in your personality ... Great space along the top where clock is ... Again another space to colour with your style with art work ... If you have a free wall add in a kitchen type piece of furniture, that has open shelving... I think it is quite neutral & easy to inject personality without major changes to what is there.

Dulux whisper white. Get a sample pot, paint a large piece of cardboard and see for yourself.

I think non gloss given that the bottom cabinets look as if they have some shine. Just looking at the photo again, do they have any damage? If so it might be a good idea to replace the doors on these at the same time - if that happens you can even more options on colour scheme. Good luck I am sure either way you will love the refresh and extra storage.