Konica Minolta
Amtrak
amtrak
At&t
IBM
A logo with a blue background and white letters could refer to several brands, but a prominent example is the Facebook logo. It features a simple blue square with white lowercase letters spelling "f." Another example is the LinkedIn logo, which also uses a blue background and white lettering.
Konica minolta
Pfizer
maserati
It is white and blue and gold. There is stripes on the top and the bottom. This is the old logo, now it is the word visa that is blue with a gold tip.
Canterbury.
Volvo's logo is 'VOLVO', in white letters, on a blue background.
ATP World Tour