Significance of the Blade Runner blue and yellow colour palette in Prometheus?

I think this color scheme is common in Ridley Scott films. Alien had a blue and yellow pallette, as did Kingom of Heaven. Black Hawk Down was mostly warm range, yellow to red in its violent moments, blue and green in its safe moments. My opinion is that these colors are common in industrialized and/or developed areas, which most Scott films take place in. Blue-black skyscrapers; pale concrete catching a yellow cast from the sun, blue or violet grey reflected into the shadows from the sky.

Being a photographer i can say that Ridles goes with emotional colour schemes.....ones that convey the emotion that hes trying to get across.........you know like cold blues and warm reds

The blue and yellow color palette is the optimal choice for viewers who have the most common form of color-blindness. Approximately 5 percent of men and 1 percent of women cannot discern red hues from green hues, making this palette pack the most visual information for the most people. From the film's perspective, this color choice makes perfect sense. If you were in a cryotube, would you rather have the emergency-revive icons of its user interface in universally discernable colors or in a scheme that 3% of the population can't perceive? And if 3% more people can enjoy the full visual effects of a, say, 200 billion US dollar grossing movie, well, it doesn't take a Sir Peter Weyland to 'green light' that color choice!

I have always thought it came from his love for Planet of the Vampires. Have a look at the costumes and sets from that. All blue and yellow.

Good points one and all. I am gonna try some colour experiments in real life and see what happens. And I am gonna track down Planet of the Vampires now as it has hitherto escaped my attention... PAX! @!