October Mist vs Onyx
October Mist and Onyx come from the same Benjamin Moore collection. These are both greys, so the question isn't which hue to choose — it's where within grey to land. The 42-point LRV gap — 47 for October Mist vs 5 for Onyx — means October Mist will open up a space more effectively. Where October Mist leans yellow, Onyx reads red — a distinction that shifts noticeably depending on the light source and surrounding finishes. A ΔE of 53.4 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 4 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
October Mist vs Onyx in Real Spaces
4 real rooms side by side. Seeing October Mist and Onyx 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
A living room wall sees more varied light than almost any other surface in the house, which makes the choice between these two more nuanced than a chip suggests. October Mist reflects noticeably more light off the walls, making the space read more open than Onyx.
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. October Mist returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Bathroom
Small bathrooms intensify color. A shade that seems quiet in a larger room can feel immersive when you're surrounded by it on four walls. October Mist returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Kitchen Cabinets
Cabinet color is always seen in context — against countertops, backsplash, and hardware — which amplifies undertone differences that might disappear on a plain wall. October Mist returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Color Details
October Mist vs Onyx Simulated Comparison
5 simulated room previews — drag the slider on each to see October Mist on one side and Onyx 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 October Mist comparisons
See how October Mist stacks up against other well-photographed colors across different brands and tones.
