RAL 670-M vs Bluebird Feather
Where RAL 670-M belongs to RAL Effect's range, Bluebird Feather is a Sherwin-Williams color. These are both blues, so the question isn't which hue to choose — it's where within blue to land. They have nearly identical light reflectance values (32 vs 31), so they'll read as similarly Medium in most lighting conditions. The ΔE 4.8 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below you'll find 6 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
RAL 670-M vs Bluebird Feather in Real Spaces
6 real rooms side by side. RAL 670-M and Bluebird Feather 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
In a living room, color works across both daylight and evening light — the same wall can read very differently at noon and at 8pm. Side by side like this, the difference is easy to read — which is exactly why seeing them in a real space is more useful than comparing chips.
Bedroom
The context that matters most in a bedroom is how a color reads under a bedside lamp at night, not under noon daylight. The distinction reads clearly at room scale, making the choice between them concrete.
Kitchen
In a kitchen, colors are seen under bright task lighting that amplifies undertones — what reads neutral elsewhere can show its hand here. The distinction reads clearly at room scale, making the choice between them concrete.
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. The distinction reads clearly at room scale, making the choice between them concrete.
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. The distinction reads clearly at room scale, making the choice between them concrete.
Kitchen Cabinets
Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. The distinction reads clearly at room scale, making the choice between them concrete.
Color Details
RAL 670-M vs Bluebird Feather Simulated Comparison
5 simulated room previews — drag the slider on each to see RAL 670-M on one side and Bluebird Feather 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 670-M comparisons
See how RAL 670-M stacks up against other well-photographed colors across different brands and tones.
At LRV 83 vs 32, White Dove is decisively the brighter choice.
Purbeck Stone reflects far more light (LRV 52 vs 32), opening up a space where RAL 670-M encloses it.
With LRVs of 32 and 30, the two reflect almost the same amount of light.
Agreeable Gray reflects far more light (LRV 60 vs 32), opening up a space where RAL 670-M encloses it.
At LRV 58 vs 32, Accessible Beige is decisively the brighter choice.
A 5-point LRV gap (32 vs 27) makes RAL 670-M the marginally brighter of the two.
French Gray reads slightly lighter (LRV 43 vs 32), a gap that shows most in low-lit rooms.
At LRV 55 vs 32, Tranquil Dawn is decisively the brighter choice.
A 11-point LRV gap (44 vs 32) makes Hardwick White the marginally brighter of the two.
Pure White reflects far more light (LRV 84 vs 32), opening up a space where RAL 670-M encloses it.
At LRV 66 vs 32, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 32, Shoji White is decisively the brighter choice.
At LRV 32 vs 12, RAL 670-M is decisively the brighter choice.
At LRV 68 vs 32, Skimming Stone is decisively the brighter choice.
At LRV 32 vs 12, RAL 670-M is decisively the brighter choice.
At LRV 45 vs 32, Saybrook Sage is decisively the brighter choice.
With LRVs of 32 and 31, the two reflect almost the same amount of light.
RAL 670-M reflects far more light (LRV 32 vs 7), opening up a space where Pine Needle encloses it.
RAL 670-M reads slightly lighter (LRV 32 vs 24), a gap that shows most in low-lit rooms.
Guilford Green reflects far more light (LRV 57 vs 32), opening up a space where RAL 670-M encloses it.