Maybe have the Coca Raton cut by 50% so it is lighter

I would try Navajo White and White Cloud, both off whites, both off white enough to work with both the Boca Raton and the tile without going tan. I like Jck910's idea, but would avoid more blue in a coffee shop. The Boca Raton is bright enough to be stimulating, but soft blues suppress the appetite. Someday, when you can afford to change colors try to incorporate orange/yellow and reds into the decor. Orange is known to increase appetite, Red is highly stimulating and causes people to want things passionately. There is a reason that every fast food company has red/yellow and orange in their logo and why so many restaurants have red table cloths. .

I'm all for photos of local places. But with black/white and so much tan - blah !?

The long wall's wood-framed pieces -- wallpaper could liven with color and pattern....by counter's teal seating?

Orla Kiely Flower Blossom Wallpaper · More Info

Upper East Side · More Info

Glad you like it. Don't let it become like a facility's cafeteria.

May I add about photos - if he had painted frames, and photos in brown-sepia ?

Yes I really like that idea but do you mean colored frames? I too mentioned sepia and think thatvwould look better.
I do not like tan but we decided on Assessible Beige for the top.
We tried off whites and one called BM Vanilla Ice Cream (which was a suggested complimentary color)and they looked too light, especially by the ugly wall tile.
I love the wall paper you posted (especially the green) but not sure where we could put it on the walls. Many are so cut up with the wood framing (which again I do not like). I do like the color green just not the greens we now have.
We are doing what we can for now to freshen things up till we can someday change a lot more .
I appreciate all the help!

Yes, I meant frames in an accent color. What colors have you considered - I assume the teal color is one.

So much tan, again Idk if black or sepia will enliven.

Home Goods, etc... are good but I think you'd need more than 2 -

"Rain Drops" Giclee Canvas Wall Art, 12"x12" · More Info

Have you considered the green featured with Boca Raton Blue or Vanilla Ice Cream?

Accent idea - "ruby red is the perfect pairing for teal because it’s slightly more than a neutral, allowing the rich tones of the teal to be warmed up by the splash of red...

https://housetipster.com/housetips/1525/colors-to-pair-with-teal

Elwood Bamboo Kitchen · More Info

Elwood Bamboo Kitchen · More Info

houssaon I saw that combination but I already have the teal green from the booths, mint green in the table tops and then a green in the backsplash tile. so that color would have clashed. I am actually trying to tone down all the teal and green by using the Boca Raton and Assessible Beige color. I appreciate the thought though!

everdebz I do like the red accents and agree it would look great with the teal color. Unfortunately we already have stools screwed into the tile floor that are the same teal fabric that are on the bottom of the booths. How would some pictures framed in red look? Also because the booth table tops are speckled mintish green with a teal border I am not sure the red cloth patterns would work for inside the wood squares above the seating but I do love that pattern. Oh how I wish I could change everything. This is an old fashioned diner people come to , lots of locals, who come to eat and chat, etc. It isn't what you would call a pretty restaurant. lol We serve breakfast, lunch and dinner. We are not far from the ocean (3-5 miles) so serve a lot of seafood. The girls (waitstaff) had actually over the years started putting up tacky signs all above the backsplash which we are not putting back up.

Yellow accents ?

They are still painting so have to wait to see how it looks when done.
thanks for the painting suggestions. Agree the yellow is pretty, love the bicycle print!

Might be a local theme you could build on, that some might appreciate seeing...

like some places, you could hang things, like a bike! .... once I saw a canoe up above...

I am sorry to say that I missed that B.Raton is the teal... [confused again].

"The bottom part of the wall and inside the two "frame" will be the Boca Raton. Above that is where I am looking for the lighter color" --

ok to have a masculine thing - might be great with photos by the booths - my bad. Yellow paint could be great accent for photos [in the 'two frame' places].... Best of 'luck' and please post !!!

shirts:

https://www.walmart.com/ip/Men-s-Keep-Calm-And-Bike-On-Bicycle-Rider-Bicyclist-FREE-SandH-T-Shirt/275076768?selected=true

https://www.walmart.com/ip/3dRose-Keep-Calm-and-Carry-on-Drink-Tea-Have-a-Nice-Cuppa-British-Humor-Coffee-Mug/774274161?selected=true