You'll need a palette and a paint knife or brush in order to get started. Mixing paint with a paint knife results in a more even, uniform color compared to a brush.  If you're using brushes to mix paint, make sure to clean them in between mixing. You don’t want paint of a previous color mixing with the two you are currently mixing. Use soap and water for acrylic, or odorless mineral spirits or turpentine for oil.  You can mix your paints in a jar instead of a palette if you intend on preparing paint for later work. Color mixing is skill that takes hard work and experience. Practice with different amounts of paint, as well as different kinds of combinations, in order to get more acquainted with how your paints will interact. All other colors stem from the three primary colors: red, blue, and yellow. These colors cannot be made from other colors. It's useful to think of them as the base “parent” colors.  You might consider purchasing larger quantities of the primary colors compared to other types of paint. Larger tubes of paint are often available in 200ml quantities. Paints come in two qualities: student grade and professional. Student grades are cheaper, but inferior than professional paints when it comes to longevity, intensity, and other factors. Student grade paints can also alter the mixing ratios required for certain colors, so be cognizant of your purchases.

How would you rephrase that briefly using Vietnamese?
Chuẩn bị dụng cụ pha màu. Bắt đầu với ba màu cơ bản.