RAL 610-3 vs Perfect Periwinkle
RAL 610-3 (RAL Effect) and Perfect Periwinkle (Sherwin-Williams) come from different manufacturers. These are both blues, so the question isn't which hue to choose — it's where within blue to land. The 4-point LRV gap — 27 for RAL 610-3 vs 23 for Perfect Periwinkle — means RAL 610-3 will open up a space more effectively. ΔE 6.2 means they're clearly different, but not dramatically so — they'd pair well in the same room. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
RAL 610-3 vs Perfect Periwinkle in Real Spaces
1 real room side by side. RAL 610-3 and Perfect Periwinkle 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.
House
A full exterior is the most demanding test for a paint color — scale and outdoor light both amplify differences that seem small on a swatch. RAL 610-3 has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
Color Details
RAL 610-3 vs Perfect Periwinkle Simulated Comparison
5 simulated room previews — drag the slider on each to see RAL 610-3 on one side and Perfect Periwinkle 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 610-3 comparisons
See how RAL 610-3 stacks up against other well-photographed colors across different brands and tones.
At LRV 83 vs 27, White Dove is decisively the brighter choice.
Purbeck Stone reflects far more light (LRV 52 vs 27), opening up a space where RAL 610-3 encloses it.
Evergreen Fog reads slightly lighter (LRV 30 vs 27), a gap that shows most in low-lit rooms.
Agreeable Gray reflects far more light (LRV 60 vs 27), opening up a space where RAL 610-3 encloses it.
At LRV 58 vs 27, Accessible Beige is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 27 vs 27), so neither reads brighter in a room.
French Gray reflects far more light (LRV 43 vs 27), opening up a space where RAL 610-3 encloses it.
At LRV 55 vs 27, Tranquil Dawn is decisively the brighter choice.
At LRV 44 vs 27, Hardwick White is decisively the brighter choice.
Pure White reflects far more light (LRV 84 vs 27), opening up a space where RAL 610-3 encloses it.
At LRV 66 vs 27, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 27, Shoji White is decisively the brighter choice.
At LRV 27 vs 12, RAL 610-3 is decisively the brighter choice.
At LRV 68 vs 27, Skimming Stone is decisively the brighter choice.
At LRV 27 vs 12, RAL 610-3 is decisively the brighter choice.
At LRV 45 vs 27, Saybrook Sage is decisively the brighter choice.
Pale Green reads slightly lighter (LRV 31 vs 27), a gap that shows most in low-lit rooms.
RAL 610-3 reflects far more light (LRV 27 vs 7), opening up a space where Pine Needle encloses it.
With LRVs of 27 and 24, the two reflect almost the same amount of light.
Guilford Green reflects far more light (LRV 57 vs 27), opening up a space where RAL 610-3 encloses it.