Charcoal Blue vs Koi Pond
Both are Sherwin-Williams colors. Hue-wise, Charcoal Blue belongs to the blue-grey family and Koi Pond to the beige-greige family. At LRV 44 vs 6, Koi Pond will read as the brighter of the two — a 39-point gap that matters most in north-facing or low-light rooms. The tonal difference — Charcoal Blue's cool character against Koi Pond's warm — becomes most visible against white trim or in morning light. At ΔE 50.7, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below you'll find 7 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Charcoal Blue vs Koi Pond in Real Spaces
7 real rooms side by side. Seeing Charcoal Blue and Koi Pond 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. Koi Pond returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Bedroom
Bedroom walls are often seen under warm artificial light, a context that shifts both colors from how they look on a chip. The LRV gap is large enough that Koi Pond will make the room feel meaningfully brighter than Charcoal Blue would.
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 Koi Pond will make the room feel meaningfully brighter than Charcoal Blue 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 Koi Pond will make the room feel meaningfully brighter than Charcoal Blue would.
Home Office
In a home office, wall color sits in your peripheral vision for hours at a time, so temperature and undertone matter more than you might expect. The LRV gap is large enough that Koi Pond will make the room feel meaningfully brighter than Charcoal Blue would.
House
At full exterior scale, the difference between these two colors becomes much easier to judge than from a small chip. The LRV gap is large enough that Koi Pond will make the room feel meaningfully brighter than Charcoal Blue would.
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. Koi Pond returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Color Details
Charcoal Blue vs Koi Pond Simulated Comparison
5 simulated room previews — drag the slider on each to see Charcoal Blue on one side and Koi Pond 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 Charcoal Blue comparisons
See how Charcoal Blue stacks up against other well-photographed colors across different brands and tones.
With LRVs of 6 and 4, the two reflect almost the same amount of light.
Pure White reflects far more light (LRV 84 vs 6), opening up a space where Charcoal Blue encloses it.