Yellow and orange dyes are from henna and saffron, blues dyes from indigo. The exact same process is utilized at the rug cooperative. None of this stuff by itself certainly are a deal breaker but are points you must keep in mind when you shop onilne in your Moroccan rug. https://lorenzopalwf.spintheblog.com/37016927/not-known-facts-about-moroccan-rugs-for-sale