RAL 100 93 05
Cloud Aqua
RAL 100 93 05 Cloud Aqua is positioned at hue 100, lightness 93, and chroma 05, the very lightest expression of the blue-green family, a near-white that carries only the most ethereal aquatic coolness. It is specified for premium residential ceilings, minimalist gallery spaces, and luxury interior schemes where absolute white feels too stark. At this extreme lightness, the colour is more atmosphere than pigment, gently freshening every surface it touches.
Color Reference
The RAL Design system uses Hue-Lightness-Chroma (HLC) notation. Hue describes the color family (0-360°), Lightness describes brightness (0-100), and Chroma describes saturation intensity (0-100+).
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.
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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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