Colonial Blue vs Agreeable Gray
Colonial Blue is a Benjamin Moore color while Agreeable Gray comes from Sherwin-Williams. Hue-wise, Colonial Blue belongs to the blue family and Agreeable Gray to the greige-grey family. At LRV 60 vs 35, Agreeable Gray will read as the brighter of the two — a 25-point gap that matters most in north-facing or low-light rooms. The tonal difference — Colonial Blue's blue character against Agreeable Gray's warm — becomes most visible against white trim or in morning light. At ΔE 27.0, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Colonial Blue vs Agreeable Gray in Real Spaces
1 real room side by side. Seeing Colonial Blue and Agreeable Gray in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Bathroom
Bathrooms amplify color — the enclosed space and reflective surfaces make what reads subtle elsewhere feel more present here. The LRV gap is large enough that Agreeable Gray will make the room feel meaningfully brighter than Colonial Blue would.
Color Details
Colonial Blue vs Agreeable Gray Simulated Comparison
5 simulated room previews — drag the slider on each to see Colonial Blue on one side and Agreeable 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.
More Colonial Blue comparisons
See how Colonial Blue stacks up against other well-photographed colors across different brands and tones.
