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Light reflectance value (LRV) estimator
Estimate how light or dark a paint color reads from its hex code.
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How this works
LRV is close to the CIE relative luminance (Y) of the color times 100. Brands publish measured LRV on the chip; use theirs when available. Under 50 reads darker and absorbs light; over 60 bounces light around a room.
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