Lamp Black vs Cast Iron
Lamp Black is a Little Greene color while Cast Iron comes from Sherwin-Williams. Both sit in the grey family, which is useful context if you're narrowing within a single hue direction. At LRV 13 vs 3, Cast Iron will read as the brighter of the two — a 10-point gap that matters most in north-facing or low-light rooms. The tonal difference — Lamp Black's purple character against Cast Iron's neutral — becomes most visible against white trim or in morning light. At ΔE 24.4, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below you'll find 4 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Lamp Black vs Cast Iron in Real Spaces
4 real rooms side by side. Seeing Lamp Black and Cast Iron 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. Cast Iron returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Kitchen
Kitchen lighting tends to be bright and directional, which sharpens contrast and makes undertone differences more apparent. The LRV gap is large enough that Cast Iron will make the room feel meaningfully brighter than Lamp Black would.
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 Cast Iron will make the room feel meaningfully brighter than Lamp Black would.
Kitchen Cabinets
On cabinetry, undertone and temperature become more pronounced against countertops and hardware. The LRV gap is large enough that Cast Iron will make the room feel meaningfully brighter than Lamp Black would.
Color Details
Lamp Black vs Cast Iron Simulated Comparison
5 simulated room previews — drag the slider on each to see Lamp Black 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 Lamp Black comparisons
See how Lamp Black stacks up against other well-photographed colors across different brands and tones.
