If you have made a comprehensive color chart of recipes, you can select one when you need one in a hurry. Color matching in under pressure is not an easy thing to do.
I suggest that you create a color chart using a wide range of different fabrics so that you have actual comparisons of how different fibers respond to the same recipes.
Too late! She cried!
Make your color chart BEFORE you promise to try to mix a specific color for one of your customers. If you struggle to get it right, you can find yourself under a lot of pressure from customers who have no idea just how tricky it can get.