RAL 660-M vs Pure White
Where RAL 660-M belongs to RAL Effect's range, Pure White is a Sherwin-Williams color. RAL 660-M reads as blue, while Pure White reads as beige-greige — two distinct hue families, not close cousins. Pure White (LRV 84) reflects noticeably more light than RAL 660-M (LRV 24), a difference of 60 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 42.2, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below you'll find 6 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
RAL 660-M vs Pure White in Real Spaces
6 real rooms side by side. Seeing RAL 660-M and Pure White in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Living Room
In a living room, color works across both daylight and evening light — the same wall can read very differently at noon and at 8pm. The LRV gap is large enough that Pure White will make the room feel meaningfully brighter than RAL 660-M would.
Bedroom
The context that matters most in a bedroom is how a color reads under a bedside lamp at night, not under noon daylight. Pure White reflects noticeably more light off the walls, making the space read more open than RAL 660-M.
Kitchen
In a kitchen, colors are seen under bright task lighting that amplifies undertones — what reads neutral elsewhere can show its hand here. Pure White reflects noticeably more light off the walls, making the space read more open than RAL 660-M.
Bathroom
Bathrooms are one of the few spaces where you're genuinely enclosed by the paint color, which makes the choice between these two more consequential. Pure White reflects noticeably more light off the walls, making the space read more open than RAL 660-M.
House
Seen across an entire facade, subtle tonal differences become pronounced. What reads as nearly the same on a chip often reads as clearly different at scale. Pure White reflects noticeably more light off the walls, making the space read more open than RAL 660-M.
Kitchen Cabinets
Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. Pure White reflects noticeably more light off the walls, making the space read more open than RAL 660-M.
Color Details
RAL 660-M vs Pure White Simulated Comparison
5 simulated room previews — drag the slider on each to see RAL 660-M on one side and Pure White on the other.
Digital color is approximate. These simulations are generated from the manufacturer's hex values and overlaid on grayscale room photos — your screen's calibration, brightness, and viewing angle all affect how they render. Before committing to either color, test physical samples in your own space under the light you actually live with.
More RAL 660-M comparisons
See how RAL 660-M stacks up against other well-photographed colors across different brands and tones.
White Dove reflects far more light (LRV 83 vs 24), opening up a space where RAL 660-M encloses it.
At LRV 52 vs 24, Purbeck Stone is decisively the brighter choice.
A 7-point LRV gap (30 vs 24) makes Evergreen Fog the marginally brighter of the two.
At LRV 60 vs 24, Agreeable Gray is decisively the brighter choice.
Accessible Beige reflects far more light (LRV 58 vs 24), opening up a space where RAL 660-M encloses it.
Denim Drift reads slightly lighter (LRV 27 vs 24), a gap that shows most in low-lit rooms.
At LRV 43 vs 24, French Gray is decisively the brighter choice.
Tranquil Dawn reflects far more light (LRV 55 vs 24), opening up a space where RAL 660-M encloses it.
Hardwick White reflects far more light (LRV 44 vs 24), opening up a space where RAL 660-M encloses it.
Balboa Mist reflects far more light (LRV 66 vs 24), opening up a space where RAL 660-M encloses it.
Shoji White reflects far more light (LRV 74 vs 24), opening up a space where RAL 660-M encloses it.
RAL 660-M reads slightly lighter (LRV 24 vs 12), a gap that shows most in low-lit rooms.
Skimming Stone reflects far more light (LRV 68 vs 24), opening up a space where RAL 660-M encloses it.
RAL 660-M reads slightly lighter (LRV 24 vs 12), a gap that shows most in low-lit rooms.
Saybrook Sage reflects far more light (LRV 45 vs 24), opening up a space where RAL 660-M encloses it.
A 7-point LRV gap (31 vs 24) makes Pale Green the marginally brighter of the two.
At LRV 24 vs 7, RAL 660-M is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 24 vs 24), so neither reads brighter in a room.
At LRV 57 vs 24, Guilford Green is decisively the brighter choice.
At LRV 72 vs 24, Just Walnut is decisively the brighter choice.