Groan.....oh dear, the Chevrons are HSTs Tartan and my foray into trying to coax one of them apart and then back together was about as much fun as a trip to the dentist!
feline fanatic, my two whites were 2 totally different lots/brands, (insert quiet weeping and hand wringing here please!). I just happened to have some leftover squares from a previous quilt cut and got them mixed up with this lot. Ha.....and I wondered the other day why I had so many white squares left over after I had made all my chevrons...was sure I hadn't "over purchased" my quantity. Derrrrr....the penny drops now!!!!!
Meanwhile, it is a new day here across the sea and I am up at a ridiculous early hour making DH breakfast after only a couple of hours sleep. But, I now have my new chevrons cut out and half of them sewn together so once DH is off to work I can sit down and start re-sewing my rows...again! Thanks to everyone for the advice.

Post a pic when your done! Also dimensions, fabric range, pattern used and any other details. This helps "newbies" like me enormously. Glad you are a "happy chappy" again! ;)

Another reason I like to keep all my fabric and patterns together in the same project box. just a courtesy tip.

And yes would love to see the finished photo.

Just a thought here...could you possibly "applique" the correct white over the wrong ones, then cut away the back of the wrong ones as close to the seam as possible? You will have a bulkier seam, but when the top is quilted the bulk should work in. As I said, just a thought here.

I am a beer gal myself, but enjoy your "red".

I agree, just remake those blocks and take out enough seams to get the wrong ones out and the correct ones in. It really doesn't take as much time as you think it will. Does it sound like I have experience???? Unfortunately, I've gotten to practice the art of taking out incorrect blocks and replacing more than once. You will absolutely feel so much better about the project when it looks right to you.

How about a picture??? A before and then an after would be neat.

If it's not quilted it's relatively easy to remove a piece and hand stitch another in it's place. I've had to do this several times LOL

Looks like you've got it sorted, but easy on the red and keep it away from the quilt....you've had enough dramas with this quilt:). Show us when you are finished, sounds lovely.

Have you taken a picture of the project? Sometimes what we see as "horrible" isn't really bad once we get a little distance. A picture can help make the determination.

I like the idea of making more chevrons with the "wrong" fabric and the "correct" fabric. Then you can call it a design choice and nobody will be the wiser.

Feline Fanatic is right: the color difference may not be noticeable at all when quilted. A quicker fix would be to streak a bit of paint across all the whites and that would solve your problem quickly and efficiently.