The color picker from the color books showing wrong colors

Im not depending on the photoshop swatches as my authority, I use the swatch book.  however, I do have to create a color key on my work for production.  When creating this key, I cannot access the correct color from the picker bc when I do, it shows the wrong color (I’m trying to get a specific green, but it shows as orange).  My business does not start with Pantones, but ends with them. I have to take art and then assign Pantone numbers to existing colors as close as possible. It requires the Pantone book and also the ability to create the key on the digital art (as mentioned). Knowing the Pantone I want and being able to call it up in the picker makes this easy. Or at least it used to.