RAL 000 50 00
Standard Grey
RAL 000 50 00 Standard Grey marks the exact midpoint of the RAL Design grey axis at lightness 50, the theoretical balance between light and dark with zero chroma. It is a definitive specification for structural steelwork, staircase stringers, and signage frames where a solid, dependable grey is required. This colour serves as the benchmark neutral against which all other greys in the system can be compared.
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.
Build a Palette Around Standard Grey
Palette Generator
Select a harmony type, then press Space to reroll unlocked colors.
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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