How dark do you want that hall to be and how much wattage will your light fixtures hold? Caves are not too welcoming.

Gray needs LIGHT - windows/skylights - and CONTRAST to keep it from looking like a concrete box.

Here is a beautiful Gray hallway in Robert Adams's Osterley Park.

Not the use of contrasting white, brown, and WINDOWS.

(Architectural detail doesn't hurt)

Offhand I would say doors light blue. Bring in a gallery wall with black and white photos in black frames. I prefer charcoal gray instead of black paint, same effect but less stark.

That thread was not from T Plump, they just commented.

https://www.houzz.com/discussions/3396285/door-trim-different-color-then-baseboard

What was your overall plan when you decided to paint the walls gray and the trim black? Do you have an inspiration picture that will help make sense of your color choices, especially wrt your flooring?

@HU-787167202 for the lighting I'm thinking wall sconce.  Being in AZ the gray helps tone down some of the bright sunshine from outside.  I don't really like the floor lights but I will work with them for now.  I believe the watts was 40.

@ShadyWillowFarm. The inspiration came from some of these pics I had found.

My only suggestion would be if you do paint the doors black, don't do them in gloss. Your inspo picture has a matte or maybe semi matte finish.

I agree with painting the doors the same color as the trim.

I also agree on black doors like the trim. It will look really good.

I'd do either bright white (BM Steam) or a deep golden yellow.

I would paint the doors the same as the trim.

I would repaint the black and gray to colors that actually co ordinate with the floor instead of fighting it. Unless you plan to change floor soon.

Thank you so much for all your suggestions.  I appreciate it so much!  This is my first home and I'm learning on the fly.  I love this site as well.  So many beautiful ideas.  Oh so let me show you what I did with the living room.

Gorgeous.

@Mary Iverson. Wow that picture is absolutely stunning!

Is that a picture of you over the fireplace?

@ShadyWillowFarm. Yes that is me in my younger days.

I think your colors are too cool with the tile and floor, color is hard.

If only we could all live on British Country Estates.

https://en.wikipedia.org/wiki/Osterley_Park

The photo I posted earlier was from this link, but H. blocked my post until I removed it (?)