If you think a Pantone color chart is going to help you mix and match colors......your wrong...it won't help at all.

I do this for a living as I'm a screen Printer.
A pantone matching chart is really only for discribing colors that you don't have a swatch/copy of in front of you. We use the numbers to tell other people who are at different locations what colors we are talking about. Colors can not be sent by computer as everyone computer screen shows colors in a different way. So we use the Pantone numbers.

If you want it to help you mix colors then you will have to buy a matching chart from the manufacturer for the type of paint or ink you use. If they even make one.