Pearl white will suppose to reflect some shades of purple and green. I doubt Toyota would use pearl white. From what i know, Corolla has always been called Super White since 1980s. Only in 1990s there is an update called Super White 2.

Between all the brands, there are some difference. Its mainly the shade. Toyota one is supposed to be the whitest. Followed by Honda. But there might be others that are even brighter.