RAL 120 20 15
Deep Abyss
RAL 120 20 15 Deep Abyss sits at hue 120, lightness 20, and chroma 15 in the RAL Design system, producing a very dark muted cyan that evokes the crushing depths of ocean trenches and moonless coastal nights. This restrained tone is favoured for deep-sea exhibit structural finishes, observatory interior panelling, and nautical heritage trim details. Its low lightness and moderate chroma create a colour that reads nearly black in shadow yet reveals a cool cyan undertone under direct light.
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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