Yellow and orange dyes are from henna and saffron, blues dyes from indigo. A similar procedure is used on the rug cooperative. Keep in mind that the rooms that you are viewing the rug in is likely to become lots larger than the space the rug will go in at https://moroccanrug99990.canariblogs.com/the-fact-about-moroccan-rug-buy-that-no-one-is-suggesting-53162613