RGB stands for red, green, and blue. These are the primary colors used on screens like televisions, computer monitors, and phones.
When an image is displayed on a screen, each pixel is made up of three different colors of light: red, green, and blue. By combining different intensities of these three colors, the screen can display millions of different colors.
Think of it like using crayons to color a picture. Instead of just having one color like blue or red, you mix different amounts of blue, red, and green to create new colors.
So if you want to show a yellow color on the screen, you mix red and green light together. If you want to show a magenta color, you mix red and blue light together.
In conclusion, RGB is just a way of describing how different colors of light can be mixed together to make millions of different colors on a screen.