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.
