It's a neat idea, and bookmarked it just for ideas on possible designs.
Weird parts though. Does not ever seem to return a website I have ever heard of. And (although it may have nothing to do with you, and everything to do with the modern web) a lot look rather algorithmically designed.
Plus, there's sites like these people: https://www.beltnbags.com.au/ that register on every pure tone and near pure-tone search because they're listed as (#0000ff, 24.9%, #f7f7ff, 13.0%, #f7f7f7, 13.0%, #00ff00, 24.2%, #ff0000, 24.9%)
However, if you go to their website, I don't know what you're scraping, cause it sure does not "look" like its 1/4 red, 1/4 green, 1/4 blue, and 1/4 of dueling eggshell white. It looks white, black, teeny red labels, and lots of brown clothes.