Colonnade Gray vs Intellectual Gray
Both from Sherwin-Williams's palette. These are both greige-greys, so the question isn't which hue to choose — it's where within greige-grey to land. Colonnade Gray (LRV 53) reflects noticeably more light than Intellectual Gray (LRV 36), a difference of 17 points that becomes especially apparent in rooms with limited natural light. Both lean warm, so they'll behave similarly in mixed or changing light conditions. With a ΔE of 11.9, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Colonnade Gray vs Intellectual Gray in Real Spaces
3 real rooms side by side. Seeing Colonnade Gray and Intellectual Gray in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Living Room
In a living room, color works across both daylight and evening light — the same wall can read very differently at noon and at 8pm. The LRV gap is large enough that Colonnade Gray will make the room feel meaningfully brighter than Intellectual Gray would.
Bathroom
Bathrooms are one of the few spaces where you're genuinely enclosed by the paint color, which makes the choice between these two more consequential. Colonnade Gray reflects noticeably more light off the walls, making the space read more open than Intellectual Gray.
Kitchen Cabinets
Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. Colonnade Gray reflects noticeably more light off the walls, making the space read more open than Intellectual Gray.
Color Details
Colonnade Gray vs Intellectual Gray Simulated Comparison
5 simulated room previews — drag the slider on each to see Colonnade Gray on one side and Intellectual Gray 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.