I like polished nickel.
Or brass. Polished or not….

Either way, hardware can come last…(right before backsplash)
Order a few samples and test them out after everything else is in….
Don’t stress over it…it’ll look great! You’ve picked beautiful products so far! Trust yourself🤍🤍

Would you consider this style hardware?

Thanks! And yes, I actually want to use that style for a few cabinets, I love that look. Can you send me the link to those?

"hardware can come last" I'd say that depends. My cabinet maker wants my hardware before delivery, so that they can drill the holes. (And I'd rather have them do that anyway.) Also, if you have any recessed pulls, the cabinet maker would likely need to know that as well.

Plus one to the comment about ordering samples! Colors online can be deceiving.

https://www.rejuvenation.com/products/small-oval-cupboard-latch/

Will your cabinets be inset?

Brushed nickel will look good and yes, you can use black on the island.

Not a fan of brushed finishes - very 90s/early 00s. I'd do something polished or rubbed instead.

Search for a recent thread about cabinet hardward, one of the designers (Jan, I believe) recommends limiting yourself to three styles/sizes: for example, a knob, a pull of one size and then a pull of another size. Appliance pulls would not count. I think she's right about limiting types and sizes, particularly in your case, a kitchen with two cabinet finishes. Brass or gold would look beautiful on both white and wood.

@chris b, what does that mean?

All of the cabinets pictured with the “latch” hardware are inset.

Got it, yes ours are inset

If there’s pendants above island consider that finish too when deciding

Inset cabinet doors and drawers are set within the frame instead of resting on top as the more typically used overlay do.