Blue Opal vs Telegrey 4
Where Blue Opal belongs to PPG's range, Telegrey 4 is a RAL Classic color. Blue Opal reads as blue, while Telegrey 4 reads as grey — two distinct hue families, not close cousins. Telegrey 4 (LRV 59) reflects noticeably more light than Blue Opal (LRV 56), a difference of 3 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 10.9, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Blue Opal vs Telegrey 4 Simulated Comparison
5 simulated room previews — drag the slider on each to see Blue Opal on one side and Telegrey 4 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 Blue Opal comparisons
See how Blue Opal stacks up against other well-photographed colors across different brands and tones.
At LRV 83 vs 56, White Dove is decisively the brighter choice.
Blue Opal reads slightly lighter (LRV 56 vs 52), a gap that shows most in low-lit rooms.
Blue Opal reflects far more light (LRV 56 vs 30), opening up a space where Evergreen Fog encloses it.
Agreeable Gray reads slightly lighter (LRV 60 vs 56), a gap that shows most in low-lit rooms.
Their light reflectance is nearly identical (LRV 58 vs 56), so neither reads brighter in a room.
At LRV 56 vs 27, Blue Opal is decisively the brighter choice.
Blue Opal reflects far more light (LRV 56 vs 43), opening up a space where French Gray encloses it.
Their light reflectance is nearly identical (LRV 56 vs 55), so neither reads brighter in a room.
At LRV 56 vs 44, Blue Opal is decisively the brighter choice.
Pure White reflects far more light (LRV 84 vs 56), opening up a space where Blue Opal encloses it.
A 10-point LRV gap (66 vs 56) makes Balboa Mist the marginally brighter of the two.
At LRV 74 vs 56, Shoji White is decisively the brighter choice.
At LRV 56 vs 12, Blue Opal is decisively the brighter choice.
At LRV 68 vs 56, Skimming Stone is decisively the brighter choice.
At LRV 56 vs 12, Blue Opal is decisively the brighter choice.
A 11-point LRV gap (56 vs 45) makes Blue Opal the marginally brighter of the two.
Blue Opal reflects far more light (LRV 56 vs 31), opening up a space where Pale Green encloses it.
Blue Opal reflects far more light (LRV 56 vs 7), opening up a space where Pine Needle encloses it.
Blue Opal reflects far more light (LRV 56 vs 24), opening up a space where Cement grey encloses it.
With LRVs of 57 and 56, the two reflect almost the same amount of light.