Harbor Side Blue vs Agreeable Gray
Where Harbor Side Blue belongs to Benjamin Moore's range, Agreeable Gray is a Sherwin-Williams color. Hue-wise, Harbor Side Blue belongs to the blue family and Agreeable Gray to the greige-grey family. Agreeable Gray (LRV 60) reflects noticeably more light than Harbor Side Blue (LRV 40), a difference of 20 points that becomes especially apparent in rooms with limited natural light. Harbor Side Blue runs blue while Agreeable Gray is decidedly warm, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 33.1, 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 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Harbor Side Blue vs Agreeable Gray in Real Spaces
1 real room side by side. Seeing Harbor Side 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.
Dining Room
A dining room lit by a dimmed pendant or candles is one of the most forgiving environments for paint — warm light softens almost everything. Agreeable Gray returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Color Details
Harbor Side Blue vs Agreeable Gray Simulated Comparison
5 simulated room previews — drag the slider on each to see Harbor Side 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 Harbor Side Blue comparisons
See how Harbor Side Blue stacks up against other well-photographed colors across different brands and tones.
