Originally Posted by
Sisosig
You are probably right. Checked some Hilton and nearby Sheratons, using Google Streetview, in cities like Phoenix, Tucson, Pasadena and Los Angeles
Every time when the logo on top of the Hilton building was in red, the Sheraton name was also written in red.
While its street level sign could be in blue.
Sheraton Passadena:
https://goo.gl/maps/5Z1rpzYS3R42
Hilton LAX is also carrying both styles:
https://goo.gl/maps/seGWJjnjoZM2
Oh, that may be the whole reason! It looks to me from the Hilton LAX photo like the red sign on top is meant to be illuminated at night in a way to be seen from many blocks away, and at night red illumination is both easier to see and (at least in the past) cheaper to do (at the same intensity level) I think.
The street level sign in the picture does not need to seen from far away so even if it's illuminated at night by shining a light on it or whatever, its not big deal that it's blue in that case.
And note that what's on top is not really the logo, just the brand name. It's only the blue version at street level that has the full graphics of the logo, including the H in a circle.