Cheating Heart vs Onyx
Both are Benjamin Moore colors. These are both greys, so the question isn't which hue to choose — it's where within grey to land. At LRV 9 vs 5, Cheating Heart will read as the brighter of the two — a 4-point gap that matters most in north-facing or low-light rooms. The tonal difference — Cheating Heart's blue character against Onyx's red — becomes most visible against white trim or in morning light. At ΔE 11.0, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below you'll find 5 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Cheating Heart vs Onyx in Real Spaces
5 real rooms side by side. Seeing Cheating Heart 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
Living rooms test a color across a full range of conditions — morning sun, afternoon shade, and evening lamp light all shift how both of these read. Cheating Heart has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
Bathroom
Bathrooms amplify color — the enclosed space and reflective surfaces make what reads subtle elsewhere feel more present here. The brightness difference is modest but present — Cheating Heart gives the walls a little more lift.
House
At full exterior scale, the difference between these two colors becomes much easier to judge than from a small chip. The brightness difference is modest but present — Cheating Heart gives the walls a little more lift.
Front Door
Front doors are seen in isolation against the rest of the facade, which makes them a high-stakes surface where even subtle differences matter. Cheating Heart has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
Kitchen Cabinets
On cabinetry, undertone and temperature become more pronounced against countertops and hardware. The brightness difference is modest but present — Cheating Heart gives the walls a little more lift.
Color Details
Cheating Heart vs Onyx Simulated Comparison
5 simulated room previews — drag the slider on each to see Cheating Heart 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 Cheating Heart comparisons
See how Cheating Heart stacks up against other well-photographed colors across different brands and tones.
