RAL 660-M vs Lakeshore
RAL 660-M is a RAL Effect color while Lakeshore comes from Sherwin-Williams. Both sit in the blue family, which is useful context if you're narrowing within a single hue direction. At LRV 27 vs 24, Lakeshore will read as the brighter of the two — a 3-point gap that matters most in north-facing or low-light rooms. At ΔE 3.6, the difference is perceptible but not dramatic — the two can work harmoniously in the same space. Below you'll find 5 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
RAL 660-M vs Lakeshore in Real Spaces
5 real rooms side by side. RAL 660-M and Lakeshore are close enough that the difference can be hard to judge from a chip alone — these photos show how each reads at scale, across different spaces and lighting conditions.
Living Room
Living rooms test a color across a full range of conditions — morning sun, afternoon shade, and evening lamp light all shift how both of these read. Lakeshore has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
Bedroom
Bedroom walls are often seen under warm artificial light, a context that shifts both colors from how they look on a chip. The brightness difference is modest but present — Lakeshore gives the walls a little more lift.
Kitchen
Kitchen lighting tends to be bright and directional, which sharpens contrast and makes undertone differences more apparent. The brightness difference is modest but present — Lakeshore gives the walls a little more lift.
Bathroom
Bathrooms amplify color — the enclosed space and reflective surfaces make what reads subtle elsewhere feel more present here. The brightness difference is modest but present — Lakeshore gives the walls a little more lift.
Color Details
RAL 660-M vs Lakeshore Simulated Comparison
5 simulated room previews — drag the slider on each to see RAL 660-M on one side and Lakeshore 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.
At LRV 84 vs 24, Pure White is decisively the brighter choice.
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.
RAL 660-M reflects far more light (LRV 24 vs 8), opening up a space where Duck Green encloses it.
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.