What Is Light Reflective Value (LRV) in Paint?

Light Reflective Value (LRV) is a measurement of how much visible light a paint color reflects versus absorbs, expressed on a scale from 0 (theoretical absolute black, absorbing all light) to 100 (theoretical absolute white, reflecting all light) — it's a genuinely useful, objective number for predicting how a color will actually feel and perform in a specific room.

1. Why LRV matters beyond just the color name or swatch

Two colors with similar-sounding names (different "grays," for instance) can have meaningfully different LRVs, affecting how light or dark they actually read on a wall — checking a paint's specific LRV number, usually available from the manufacturer, gives a more objective comparison point than color names or a small swatch alone.

2. How LRV relates to room brightness

A higher LRV color reflects more light back into a room, making the space feel brighter and can help a smaller or darker room feel more open — a lower LRV color absorbs more light, creating a cozier, more intimate feeling but making a room feel smaller or darker, particularly with limited natural light.

3. Using LRV to predict how paint will look under different lighting

A room with limited natural light benefits from a higher LRV color to help maximize the light that is available, while a room with abundant natural light has more flexibility to use a lower LRV color without the space feeling dark — checking a room's actual light levels against a paint's LRV number, rather than choosing purely on appearance in a store, gives more predictable real-world results.

4. LRV and paint sheen are related but different considerations

LRV measures how much light a color reflects based on its pigment, while sheen relates to how a paint's surface reflects light — a high-gloss paint in a low-LRV dark color still reflects light differently (more directional shine) than a flat paint in the same dark color, so both factors matter together rather than either alone fully predicting how a paint will actually look.

5. Where to find a paint's LRV number

Most major paint manufacturers list LRV values for their color swatches, either on the physical swatch itself or in their online color tools — checking this number before committing to a color, particularly for a room where light levels are a specific concern, is a straightforward extra step worth taking.

6. Using LRV alongside, not instead of, testing actual paint samples

LRV is a useful predictive tool, but it doesn't fully replace testing actual paint samples on the wall in the room's real lighting — using LRV to narrow down color choices, then confirming with a physical sample in the actual space, combines the objective data with the real visual confirmation that matters most for the final decision.