RAL 7040 Window Grey

Window Grey (#9DA1AA) is a medium, cool blue-grey from the RAL Classic system, developed specifically for window frames, sills, and architectural aluminium profiles. Its cool undertone complements both white and anthracite window surrounds, making it a universally applicable neutral in construction. The slight blue shift reflects the visual relationship between window frames and sky, lending a sense of openness and light.

True blue is the world's most popular favorite color, representing trust, competence, and stability. It suppresses appetite and promotes productivity, making it ideal for work environments. Blue is the dominant color in corporate branding because it communicates reliability without emotional excess.

Medium blue is the default choice for primary buttons, navigation bars, and link text across the web. It forms the foundation of design systems for banking, insurance, and enterprise SaaS products. While universally safe, it benefits from a distinctive hue angle or saturation to avoid blending into the sea of blue brands.