Popular colours from organizations that have nothing to do with each other

Postcard from "Ride to Conquer Cancer"

Flyer from Mr. Lube

I received both of these in the mail last week. What do they have in common? Nothing except both organizations seem to have adopted the blue and yellow colours of the Swedish flag.

Nothing against the Swedish flag, I just thought it was a bit odd to find both of these in my mailbox on the same day. Perhaps Mr. Lube should support The Ride to Conquer Cancer?