"Color dyes" refers to substances that are used to add or change the color of something. They are often used in products such as fabrics, paints, or foods to make them more vibrant or to create different shades or hues. Full definition
Avoid giving pets treats or bones with color dyes or greasy surfaces or only allow them on hard surfaces rather than carpet. (kristenlevine.com)
If you have a lot of different colored dyes going on in your hair then this hairstyle is the best option for you. (outfittrends.com)
In 2001 Magdalena Zernicka - Goetz and her colleagues at the Wellcome / Cancer Research UK Institute at the University of Cambridge did a clever experiment in which they dissolved colored dyes in olive oil and then stained each of the cells of a two - celled mouse embryo a different color — one blue and the other pink. (discovermagazine.com)