RAL 290-M
Metallic Sienna Copper
RAL 290-M Metallic Sienna Copper is the metallic variant of the RAL Effect 290 group, featuring a warm copper-sienna shimmer with fine metallic particles that create a rich, earthy glow. This premium finish is ideal for luxury fixtures, premium hardware, and decorative architectural panels. The metallic copper effect adds warmth and artisanal character.
Color Reference
RAL Effect colors combine a base shade with a metallic or pearl variant. Base shades (-1 through -6) offer tonal gradation within a color family. The -M suffix indicates a metallic finish with shimmer and depth for architectural and automotive applications.
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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