Disney+’s new highly anticipated addition to the Marvel franchise cements color as an integral aspect of its storytelling. (SPOILER ALERTish?) Initial episodes are filmed entirely in black and white, and as the series progresses, so does the color scale. The first red and yellow flashes of color perhaps act as nods to previous installments of the Marvel Universe, or as an indicator of impending romance or violence (red) and caution (yellow).
The incorporation of flashes of color with black and white stories is an extremely effective design tool utilized to highlight important objects, themes or ideas. This facet of design focuses the audience’s attention while simultaneously creating an interesting visual affect.
https://screenrant.com/wandavision-red-and-yellow-color-why/
