The Avengers comic has been around since 1963 and the look and feel of characters have changed over the years. Jon Keegan for the Wall Street Journal looked at this change through color usage in the comic’s covers.
A zoomed out timeline shows all the cover colors at once, the middle strip shows a zoomed in view, and a click on each row shows the full cover.
If you scan from 1963 down to the present, you can see a subtle shift from simple primary colors to a more complex palette.
However, there’s a lot of variation on a cover-by-cover basis, and I’m not sure if I would pick up on the change if I didn’t know what to look for. Maybe an annual aggregation to reveal more of pattern? I also expected to click the overview timeline or drag the highlighting square to quickly move through the covers, but you can only navigate by scrolling the page.
In any case, should be a fun browse for the comic book fans.