I am a bit of trivia freak, and also guernseys, colours logos etc. I keep a record of such things. I don't claim 100% accuracy but pretty close.
According to my records Centrals wore red shorts for colour clashes from 1988 - 1992. They then changed to white shorts for colour clashes in 1993, this continued in 1994 then from round 21 and during the finals they wore white shorts. From 1995 they wore white shorts at home and away. In the 1994 Annual report the team photo is in Blue shorts and for the 1995 team photo the players are wearing white shorts.
Interestingly, during 1995 & 1996 South were wearing white shorts as their 1st choice and Centrals wore blue in both games against South during these 2 years.
From memory Centrals adopted the blue shorts around 1975 to coincide with the introduction of colour television.
As you say Centrals wear white shorts every week but this fact seemed to escape Port Adelaide one time. I can't remember if it was a final or a game at Elizabeth but both teams were wearing white shorts until the Magpies changed to Black at half time. Considering who the opponent was I seem to think it was a final and I wouldn't put it past them to have done it deliberately!
