Benjamin Moore 2120-40 and Sherwin-Williams SW 2819, ΔE 1.6 apart
Benjamin Moore Smoke Gray (2120-40) and Sherwin-Williams Downing Slate (SW 2819) measure a delta-E of 1.6 apart. They sit within 1.2 LRV points of each other, so neither will look brighter than the other on the same wall. Both carry a similar amount of color, at chroma 4.6 and 5. The difference is measurable but subtle. It shows on a large wall in strong daylight and disappears under lamplight. If you need the Smoke Gray depth in Sherwin-Williams's line, start from its LRV of 19.6 rather than matching by name.
Not quite, but close - Benjamin Moore Smoke Gray and Sherwin-Williams Downing Slate are delta-E 1.6 apart, close enough that most rooms would not show the difference.
The measured color distance between Benjamin Moore Smoke Gray and Sherwin-Williams Downing Slate is delta-E 1.6.
Sherwin-Williams Downing Slate is lighter than Benjamin Moore Smoke Gray by 1.2 points of light reflectance (LRV).
| Smoke Gray | Downing Slate | |
|---|---|---|
| Brand | Benjamin Moore | Sherwin-Williams |
| Code | 2120-40 | SW 2819 |
| Hex | #757B82 | #777F86 |
| Light reflectance | 19.6 | 20.8 |
| Undertone | blue cast | blue cast |
| Chroma | 4.6 | 5.0 |
| Hue angle | 260.8° | 253.1° |
| Color family | gray | gray |