RAL 5009
Azure Blue
RAL 5009 Azure Blue is a rich, classic blue that captures the essence of clear Mediterranean skies and deep coastal waters. This timeless shade brings a sense of openness and tranquility to architectural surfaces, making it popular for maritime architecture, swimming pool facilities, and resort design. Azure Blue has been a staple in European coastal architecture for decades, where it complements white-washed walls, natural stone, and warm terracotta elements.
Color Reference
WCAG 2.1 AA requires 4.5:1 contrast for normal text. Results show this color as a background.
Spectrum & Perceptual Position
CIELAB is a perceptually uniform color space. Euclidean distance between two colors in this diagram closely matches human visual difference. The dot size shows your selected color; slightly larger dots are the nearest perceptual neighbors.
Build a Palette Around Azure Blue
Palette Generator
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Reference + opposite hue with tonal variations
Contrast ratios follow WCAG 2.1 guidelines. Green (≥4.5:1) passes AA for normal text. Amber (≥3:1) passes for large text only. Grey indicates low contrast.
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