Those sites are not always 100% correct, but I did say I wasn't sure. It was a late uncle who told me we used to play in a maroon/pale blue pinstripe kit. The one I'm thinking of is probably the 1956 FAC final.
Could have been a change strip as we played Birmingham who also play in blue but I think they wore white in that match, unless both teams changed. But we definitely played in maroon with a thin pinstripe in that match at least. Some say the pinstripe appeared white but it was (or was supposed to be I believe) a very pale blue. I did see an actual shirt worn by one of the players from the period (not sure if it was that actual match), I remember the pinstripe actually looked light grey so it's anybody's guess.
Reason I was unsure is because I didn't think we had change strips in those days so I assumed that was the standard kit at the time.