Sheila Goes Modern - Episode 3

Ok, so now I have 27 blocks - 4 are duds, but as luck would have it, I only need 23 for the quilt front and the duds, which have not worked out to the right size, can be trimmed down and will "float" on the back.

I had a frustrating time with batch 3 - made a wrong cut somewhere and did quite a bit of reverse sewing. Still a very quick project tho' - if I hadn't stalled I would basically have all blocks ready to join inside 3 hours, well say 4 hours as I have yet to cut the plain.
In the pic above is some yardage of white cotton I bought in Mauritius 4yrs ago when I fantasised about doing some dressmaking - huh, never going to happen. Weight wise, I think I could just about get away with it on the front but I think it will do well on the back. It has self cloured embroidery all over it so nicely textured.
Now here's the question - when I popped my white cotton against the blocks the white in the blocks suddenly doesn't look bright white - so is there a particular white you would recommend to me, all you Kona fans??