Sherwin-Williams Monorail Silver#B8BCBB · LRV 50
Monorail Silver reads as a true neutral (no measurable hue) — light — bounces daylight without going clinical. The notes below cover the spec, what Sherwin-Williams SW 7663 actually looks like under different light, and the closest matches at competing US brands.
Color spec
| Brand | Sherwin-Williams |
| Name | Monorail Silver |
| SKU | SW 7663 |
| Hex | #B8BCBB |
| RGB | 184, 188, 187 |
| HSL | 165°, 3%, 73% |
| LRV | 50 |
| Undertone | true neutral (no measurable hue) |
| Family | Gray |
About Sherwin-Williams Monorail Silver
At LRV 50, Monorail Silver is a light color that bounces daylight around a room without tipping into stark white. Because it carries almost no measurable hue, it stays a true neutral and pairs cleanly with nearly any trim or floor. It holds its undertone in most exposures, which is what makes light shades like this so forgiving room to room.
Monorail Silver is an easy whole-room color for living spaces and bedrooms, and light enough to carry onto trim or a ceiling if you want a soft, seamless look. Grays like this read as a modern neutral and sit comfortably alongside both warm woods and cool metals.
Kompozit alternative
The closest hex in the Kompozit deck, ranked by ΔE2000 (perceptual color difference). ΔE under 2 is indistinguishable to most eyes; under 5 is a very close visual match.
Closest matches at every US brand
9 brands · top 5 each5 closest matches per brand by ΔE2000, computed against each brand's full deck. Tap any swatch for its full single-color spec; tap the brand title to browse all gray from that brand.
Benjamin Moore
PPG / Glidden
Behr
Magnolia Home
Dunn-Edwards
Clare
Valspar
Farrow & Ball
Similar Sherwin-Williams colors
closest in the Sherwin-Williams deckThe nearest shades to Monorail Silver within Sherwin-Williams's own range, ranked by perceptual color distance — useful when you want the same look a touch lighter, darker, or warmer.
Coordinated palette
Generated by hue-rotating #B8BCBB in HSL space. Pair Monorail Silver with one accent and one neutral — the swatches below are starting points, not final picks.
Accessibility (WCAG contrast)
WCAG 2.1: AA = 4.5:1 normal text · AA Large = 3:1 large text · AAA = 7:1 normal text.