Home Question Answer What are the primary colors? What are the primary colors? The primary colors are red, green, and blue. These colors can be combined to make all the other colors we see. Related Questions What is tri color led? How many colors can be produced using a Tri-color LED? What is the full form of LED? List applications of tri color led Explain working mechanism of tri color led Who invented first visible LED? Mention difference between bicolor led & tri color led? Is tri color led is an output device or input device? Load More