Dark Olive vs Cast Iron
Dark Olive is a Benjamin Moore color while Cast Iron comes from Sherwin-Williams. Dark Olive reads as greige-grey, while Cast Iron reads as grey — two distinct hue families, not close cousins. With LRVs of 14 and 13, they'll behave almost identically in terms of how much light they reflect back into a room. The tonal difference — Dark Olive's yellow character against Cast Iron's neutral — becomes most visible against white trim or in morning light. At ΔE 3.2, the difference is perceptible but not dramatic — the two can work harmoniously in the same space. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Dark Olive vs Cast Iron in Real Spaces
3 real rooms side by side. Dark Olive and Cast Iron are close enough that the difference can be hard to judge from a chip alone — these photos show how each reads at scale, across different spaces and lighting conditions.
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. Cast Iron reads more restrained here, while Dark Olive adds a sense of enclosure and warmth.
Bathroom
Bathrooms amplify color — the enclosed space and reflective surfaces make what reads subtle elsewhere feel more present here. The temperature contrast between Dark Olive and Cast Iron is what sets these apart most in this context.
Kitchen Cabinets
On cabinetry, undertone and temperature become more pronounced against countertops and hardware. The temperature contrast between Dark Olive and Cast Iron is what sets these apart most in this context.
Color Details
Dark Olive vs Cast Iron Simulated Comparison
5 simulated room previews — drag the slider on each to see Dark Olive on one side and Cast Iron 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 Dark Olive comparisons
See how Dark Olive stacks up against other well-photographed colors across different brands and tones.














































