There are 1677 Pantone colors!
http://www.pantone.com/downloads/cat...sSeriesFAQ.pdf
so, for me..."blue" is vague. I think Royal...some would think Navy...teal is a blue. The paintchip is a good idea but should be used as a guide...i think it would be difficult to always find a fabric color match. Ever see a color card for Kona Solids? Compare them to another brand of blenders and you will see many variations of the color blue.
Sandy