Hi Doreen, yes they are antique brass. I do think that finish would look great on a dark blue gray cabinet as well, especially if you have other brass accents ( light fixtures, cabinet hardware, etc.). Another finish I love on dark blue gray is polished nickel. That can be very striking too. I guess I’d go with whatever finish looks best with the onyx. Hope that helps!

Thank you so much Karen! I so appreciate your help and quick response. Have a wonderful weekend!