Color chart is like a book of different colors. Just like how you have a book with lots of pictures, a color chart has lots of colors to choose from. It helps us to know what color something is or it helps us to pick out which color we want to use. The colors are arranged in a certain order, just like how your toys are arranged in a specific order. These charts are used in many fields like art, fashion, and design to help people choose colors that complement each other. They often have names like "fire engine red" or "ocean blue" to make it easy to remember which color is which. So, when you want to use your favorite color, you can just pick it out from the chart and use it in your painting or drawing!