There are a few ways to use Pantone colors in Illustrator. The first way is to use the color wheel. To do this, open the Colors palette and click on the wheel at the top left corner. Then, drag one of the colors from the wheel to a location on your canvas. For example, if you want to use blue in your illustrations, drag blue from the Colors palette to your canvas. The second way is to use Hue and Saturation. To do this, open the Hue and Saturation palette and click on one of the saturation buttons at the bottom of the palette. Then, drag one of the colors from the Hue and Saturation palette to a location on your canvas. For example, if you want to use green in your illustrations, drag green from the Hue and Saturation palette to your canvas. The third way is to use Mixing Modes. To do this, open Mixing Modes and click on one of the modes at the top left corner of the mixer window. Then, drag one of the colors from Mixing Modes into a location on your canvas. For example, if you want to use red in your illustrations, drag red from Mixing Modes into a location near pink or purple (depending on which mode you used).