Lamp Black vs Vast Sky
Where Lamp Black belongs to Little Greene's range, Vast Sky is a Sherwin-Williams color. Lamp Black reads as grey, while Vast Sky reads as blue — two distinct hue families, not close cousins. Vast Sky (LRV 55) reflects noticeably more light than Lamp Black (LRV 3), a difference of 52 points that becomes especially apparent in rooms with limited natural light. Lamp Black runs purple while Vast Sky is decidedly cool, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 61.9, 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 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Lamp Black vs Vast Sky in Real Spaces
2 real rooms side by side. Seeing Lamp Black and Vast Sky 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
In a living room, color works across both daylight and evening light — the same wall can read very differently at noon and at 8pm. The LRV gap is large enough that Vast Sky will make the room feel meaningfully brighter than Lamp Black would.
Front Door
A front door is a focal point — small color differences read clearly at this concentrated scale. The LRV gap is large enough that Vast Sky will make the room feel meaningfully brighter than Lamp Black would.
Color Details
Lamp Black vs Vast Sky Simulated Comparison
5 simulated room previews — drag the slider on each to see Lamp Black on one side and Vast Sky 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.
