Well kiddo, primary colors are like the building blocks for colors. Just like how you have building blocks to make houses, you have primary colors to make other colors. The primary colors are three special colors: red, yellow, and blue.
When you mix these three colors together, you can create all the other colors in the world! Mixing red and yellow makes orange, mixing yellow and blue makes green, and mixing blue and red makes purple.
That's why primary colors are so important in art and painting. They are the foundation for all the beautiful colors you see around you. So next time you are painting or coloring, remember the primary colors and use them to create your own masterpiece!