I don’t remember if there were characters or much of a plot, but what I do remember is that it had lushly illustrated two-page spreads where each spread was devoted to a single color. I think yellow was a picnic in a wheat field with buttered bread…I also think there was a spread that depicted the beach (not sure what color it might have represented). Also, I think in each spread there was a teaser color spot or object that represented the next color’s scene. I think the book ended with a scene of all the colors. I would have read this in the late 80s, but it might have been 70s etc. It was certainly bigger than a Golden Book or board book.