Telegrey 4 vs Mild Blue
Telegrey 4 (RAL Classic) and Mild Blue (Sherwin-Williams) come from different manufacturers. Hue-wise, Telegrey 4 belongs to the grey family and Mild Blue to the blue family. The 6-point LRV gap — 65 for Mild Blue vs 59 for Telegrey 4 — means Mild Blue will open up a space more effectively. ΔE 5.8 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.
Telegrey 4 vs Mild Blue in Real Spaces
1 real room side by side. Telegrey 4 and Mild Blue 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.
Bedroom
Bedrooms are typically lit with warmer, lower light than the rest of the house — a condition that flatters warm tones and deepens cool ones. Mild Blue has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
Color Details
Telegrey 4 vs Mild Blue Simulated Comparison
5 simulated room previews — drag the slider on each to see Telegrey 4 on one side and Mild Blue 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 Telegrey 4 comparisons
See how Telegrey 4 stacks up against other well-photographed colors across different brands and tones.
