RAL 140 25 05
Dark Anthracite Blue
RAL 140 25 05 Dark Anthracite Blue occupies hue 140, lightness 25, and a minimal chroma of 05, a near-neutral dark tone that barely hints at blue beneath its anthracite surface. It is ideal for server room infrastructure, cinema interior wall finishes, and contemporary joinery details. The extremely low chroma at this dark level gives it a near-neutral coolness that feels modern and quietly authoritative.
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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