Downing Slate vs Waterloo

Both are Sherwin-Williams colors. Downing Slate reads as blue-grey, while Waterloo reads as blue — two distinct hue families, not close cousins. At LRV 21 vs 13, Downing Slate will read as the brighter of the two — a 8-point gap that matters most in north-facing or low-light rooms. The tonal difference — Downing Slate's neutral character against Waterloo's cool — becomes most visible against white trim or in morning light. At ΔE 11.3, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below you'll find 6 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.

Downing Slate vs Waterloo in Real Spaces

6 real rooms side by side. Seeing Downing Slate and Waterloo 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. Downing Slate has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.

Downing SlateDowning Slate Review

@trianglepropainting

WaterlooWaterloo SW 9141 living room

@mybudgetrecipes

Bedroom

Bedroom walls are often seen under warm artificial light, a context that shifts both colors from how they look on a chip. The brightness difference is modest but present — Downing Slate gives the walls a little more lift.

Downing SlateSherwin Williams Downing Slate Bedroom

@daaaaaamn_danielle

WaterlooBedroom painted in Sherwin-Williams Waterloo

@mybudgetrecipes

Bathroom

Bathrooms amplify color — the enclosed space and reflective surfaces make what reads subtle elsewhere feel more present here. The brightness difference is modest but present — Downing Slate gives the walls a little more lift.

Downing SlateDowning Slate Bathroom

@cm_customhomes

WaterlooSherwin Williams Waterloo bathroom

@mybudgetrecipes

House

At full exterior scale, the difference between these two colors becomes much easier to judge than from a small chip. The brightness difference is modest but present — Downing Slate gives the walls a little more lift.

Downing SlateSherwin Williams Downing Slate Exterior

@kandor_painting

WaterlooBlue house in Waterloo by Sherwin Williams

@mybudgetrecipes

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. Downing Slate has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.

Downing SlateDowning Slate Door

@john_ohfs

WaterlooSW 9141 front door inspiration

@mybudgetrecipes

Kitchen Cabinets

On cabinetry, undertone and temperature become more pronounced against countertops and hardware. The brightness difference is modest but present — Downing Slate gives the walls a little more lift.

Downing SlateSw Downing Slate Painted Storage

@thecraftsmanfarmhouse

WaterlooWaterloo SW 9141 kitchen cabinets

@mybudgetrecipes

Color Details

Downing Slate
Sherwin-Williams · 2819
Hex#777F86
LRV20.8
BrandSherwin-Williams
Number2819
Undertone
TemperatureNeutral
BrightnessMedium
Waterloo
Sherwin-Williams · 9141
Hex#536872
LRV13.0
BrandSherwin-Williams
Number9141
Undertone
TemperatureCool
BrightnessDark

Downing Slate vs Waterloo Simulated Comparison

5 simulated room previews — drag the slider on each to see Downing Slate on one side and Waterloo on the other.

Bathroom
Bedroom
House
Kitchen Cabinets
Living Room

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 Downing Slate comparisons

See how Downing Slate stacks up against other well-photographed colors across different brands and tones.

White Dove
Downing Slate
White Dove
Benjamin Moore
White Dove
LRV 83

White Dove is the lighter choice

Ammonite
Downing Slate
Ammonite
Farrow & Ball
Ammonite
LRV 69

Ammonite is the lighter choice

Iron Ore
Downing Slate
Iron Ore
Sherwin-Williams
Iron Ore
LRV 6

Downing Slate reads noticeably lighter

Purbeck Stone
Downing Slate
Purbeck Stone
Farrow & Ball
Purbeck Stone
LRV 52

Purbeck Stone is the lighter choice

Evergreen Fog
Downing Slate
Evergreen Fog
Sherwin-Williams
Evergreen Fog
LRV 30

Evergreen Fog reads slightly lighter

Mizzle
Downing Slate
Mizzle
Farrow & Ball
Mizzle
LRV 52

Mizzle is the lighter choice

Agreeable Gray
Downing Slate
Agreeable Gray
Sherwin-Williams
Agreeable Gray
LRV 60

Agreeable Gray is the lighter choice

Accessible Beige
Downing Slate
Accessible Beige
Sherwin-Williams
Accessible Beige
LRV 58

Accessible Beige is the lighter choice

Denim Drift
Downing Slate
Denim Drift
Dulux
Denim Drift
LRV 27

Denim Drift reads slightly lighter

French Gray
Downing Slate
French Gray
Farrow & Ball
French Gray
LRV 43

French Gray reads noticeably lighter

Naval
Downing Slate
Naval
Sherwin-Williams
Naval
LRV 4

Downing Slate reads noticeably lighter

Tranquil Dawn
Downing Slate
Tranquil Dawn
Dulux
Tranquil Dawn
LRV 55

Tranquil Dawn is the lighter choice

Bancha
Downing Slate
Bancha
Farrow & Ball
Bancha
LRV 13

Downing Slate reads slightly lighter

Hardwick White
Downing Slate
Hardwick White
Farrow & Ball
Hardwick White
LRV 44

Hardwick White reads noticeably lighter

Pure White
Downing Slate
Pure White
Sherwin-Williams
Pure White
LRV 84

Pure White is the lighter choice

Artichoke
Downing Slate
Artichoke
Sherwin-Williams
Artichoke
LRV 21

Nearly identical in tone

Balboa Mist
Downing Slate
Balboa Mist
Benjamin Moore
Balboa Mist
LRV 66

Balboa Mist is the lighter choice

Shoji White
Downing Slate
Shoji White
Sherwin-Williams
Shoji White
LRV 74

Shoji White is the lighter choice

Snowbound
Downing Slate
Snowbound
Sherwin-Williams
Snowbound
LRV 83

Snowbound is the lighter choice

Pewter Green
Downing Slate
Pewter Green
Sherwin-Williams
Pewter Green
LRV 12

Downing Slate reads slightly lighter

Skimming Stone
Downing Slate
Skimming Stone
Farrow & Ball
Skimming Stone
LRV 68

Skimming Stone is the lighter choice

Dix Blue
Downing Slate
Dix Blue
Farrow & Ball
Dix Blue
LRV 41

Dix Blue reads noticeably lighter

Calamine
Downing Slate
Calamine
Farrow & Ball
Calamine
LRV 68

Calamine is the lighter choice

Treron
Downing Slate
Treron
Farrow & Ball
Treron
LRV 25

Treron reads slightly lighter

Vintage Vogue
Downing Slate
Vintage Vogue
Benjamin Moore
Vintage Vogue
LRV 12

Downing Slate reads slightly lighter

Saybrook Sage
Downing Slate
Saybrook Sage
Benjamin Moore
Saybrook Sage
LRV 45

Saybrook Sage reads noticeably lighter

Pale Green
Downing Slate
Pale Green
RAL ClassicClassic
Pale Green
LRV 31

Pale Green reads slightly lighter

Pine Needle
Downing Slate
Pine Needle
Dulux
Pine Needle
LRV 7

Downing Slate reads noticeably lighter

Cement grey
Downing Slate
Cement grey
RAL ClassicClassic
Cement grey
LRV 24

Cement grey reads slightly lighter

Guilford Green
Downing Slate
Guilford Green
Benjamin Moore
Guilford Green
LRV 57

Guilford Green is the lighter choice