A Shade is created by combining black with another color. So when you add black to purple, you get a shade of purple. The brightness or intensity of a color is also determined by how much black or white is added to it. My ever popular Color Mixing Master Guide, https://allkindsofsocial.com/story89439/en-how-to-make-purple-paint-in-growtopia-s%C4%B1rlar%C4%B1