RAL 150 30 40
Rich Prussian
RAL 150 30 40 Rich Prussian is positioned at hue 150, lightness 30, and chroma 40, a deep saturated blue that evokes the concentrated pigment of historic Prussian blue and deep oceanic trenches. It is specified for luxury brand accent elements, fine art gallery feature wall finishes, and premium automotive detail coatings. The strong chroma at low lightness produces a colour of concentrated mineral depth and commanding intensity.
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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