Nature made food colorful for a reason, it satisfies our creative urges to find, mix, merge and mingle flavors.
All the Nutrition You Can Keep Down
Thaddeus Howze

No, nature didn’t make food colorful solely to satisfy our urges to be creative! We evolved in a colorful environment with senses that seek out certain colors in our diet because we need to obtain a diverse variety of nutrients. We evolved learning from our environment which is full of colorful plants and animals, the environment didn’t evolve around our creativity: our creativity with colorful food evolved because of our environment.