Cosmic Rays vs Telegrey 4
Where Cosmic Rays belongs to PPG's range, Telegrey 4 is a RAL Classic color. Cosmic Rays reads as blue, while Telegrey 4 reads as grey — two distinct hue families, not close cousins. Cosmic Rays (LRV 68) reflects noticeably more light than Telegrey 4 (LRV 59), a difference of 9 points that becomes especially apparent in rooms with limited natural light. The ΔE 7.3 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Cosmic Rays vs Telegrey 4 Simulated Comparison
5 simulated room previews — drag the slider on each to see Cosmic Rays 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 Cosmic Rays comparisons
See how Cosmic Rays stacks up against other well-photographed colors across different brands and tones.
Their light reflectance is nearly identical (LRV 69 vs 68), so neither reads brighter in a room.
White Dove reflects far more light (LRV 83 vs 68), opening up a space where Cosmic Rays encloses it.
Cosmic Rays reflects far more light (LRV 68 vs 6), opening up a space where Iron Ore encloses it.
At LRV 68 vs 52, Cosmic Rays is decisively the brighter choice.
At LRV 68 vs 30, Cosmic Rays is decisively the brighter choice.
Cosmic Rays reflects far more light (LRV 68 vs 52), opening up a space where Mizzle encloses it.
A 8-point LRV gap (68 vs 60) makes Cosmic Rays the marginally brighter of the two.
Cosmic Rays reads slightly lighter (LRV 68 vs 58), a gap that shows most in low-lit rooms.
Cosmic Rays reflects far more light (LRV 68 vs 27), opening up a space where Denim Drift encloses it.
At LRV 68 vs 43, Cosmic Rays is decisively the brighter choice.
At LRV 68 vs 4, Cosmic Rays is decisively the brighter choice.
Cosmic Rays reflects far more light (LRV 68 vs 55), opening up a space where Tranquil Dawn encloses it.
Cosmic Rays reflects far more light (LRV 68 vs 13), opening up a space where Bancha encloses it.
Cosmic Rays reflects far more light (LRV 68 vs 44), opening up a space where Hardwick White encloses it.
At LRV 84 vs 68, Pure White is decisively the brighter choice.
At LRV 68 vs 21, Cosmic Rays is decisively the brighter choice.
With LRVs of 68 and 66, the two reflect almost the same amount of light.
Shoji White reads slightly lighter (LRV 74 vs 68), a gap that shows most in low-lit rooms.
Snowbound reflects far more light (LRV 83 vs 68), opening up a space where Cosmic Rays encloses it.
At LRV 68 vs 51, Cosmic Rays is decisively the brighter choice.
Cosmic Rays reflects far more light (LRV 68 vs 12), opening up a space where Pewter Green encloses it.
Cosmic Rays reflects far more light (LRV 68 vs 8), opening up a space where Duck Green encloses it.
With LRVs of 68 and 68, the two reflect almost the same amount of light.
At LRV 68 vs 41, Cosmic Rays is decisively the brighter choice.
Cosmic Rays reflects far more light (LRV 68 vs 12), opening up a space where Vintage Vogue encloses it.
Cosmic Rays reflects far more light (LRV 68 vs 45), opening up a space where Saybrook Sage encloses it.
At LRV 68 vs 31, Cosmic Rays is decisively the brighter choice.