Resistance to fading of sun-exposed Duration or Aura in dark shades

MidgeTenant

This question is a follow-up to the nearly month old thread at:

Dark paint for exterior of sun-exposed house

I've spent the past weeks shopping for paint samples for my stucco-front row house in S.F. I leaned toward a light color, after reading the opinions in the thread linked above, but was surprised to find that Benjamin Moore won't sell me their premium paint Aura in gold or light orange, and Sherwin Williams won't sell me their premium Duration in those shades either. Apparently yellow/gold + sunlight is a recipe for quick fading.

So, I returned to my first choice: a dark, navy blue for the stucco. (The trim will be cream, no matter what.)

Benjamin Moore will sell me Aura and Sherwin Williams will sell me Duration in any dark blue shade.

In the first thread, Brushjockey mentioned that many pros turn to Aura when they want deep colors. I'm interested in the experience of others with BM Aura and SW Duration in darker shades. If they're much likelier to stand up to the sun than cheaper paints, then I'll probably go with my first choice of dark blue with cream trim.

Thanks in advance for your feedback.