Why do red, yellow and blue brands choose these three colors? Is there a moral?

Red, yellow and blue are the three primary colors in art. All the colors and pictures in this world come from the combination and deployment of these three colors, which changes infinite possibilities. It means that red, yellow and blue will give the baby a colorful and beautiful new world, so that children can experience, learn and grow in happiness. And red, yellow and blue insist on creating feelings with heart, pay attention to growth with love, and strive to create zero distance with every parent and child.