Which major architectural firm uses a specific shade of blue (known as '5405C') in its branding to symbolize trust, stability, and innovation in sustainable design?

In architecture firms, branding extends beyond logos to the strategic use of color psychology in both corporate identity and design philosophy. The colors architects choose for their brand often reflect their design approach, sustainability values, and the emotional response they aim to evoke in clients and building users. This trivia question challenges your knowledge of a major architectural firm's distinctive brand color and its psychological significance.

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Foster + Partners
Zaha Hadid Architects
Gensler
Bjarke Ingels Group (BIG)