Love the blue tabs-easy to see. The labels' perforations do not start at the correct place so you have to throw out half a tab on each end. Totally useable otherwise.Liked so much I bought red folders too.
I bought red blue yellow & green folders to note the difference in my filings. The colors are used to differentiate the different categories and make finding and using them later easier. Without the colors it would be very confusing and hard to find what I was looking for.