House paint: dung, lead, and what color actually sells

August 15, 2026 · Home design · Fort Worth · Burleson · Crowley · Keller

Two questions I get constantly. What color should I paint before I list, and is it true that a black front door adds six thousand dollars? The second one has a real study behind it and the study says something rather different from what gets quoted. But first I want to tell you how paint was made before it came in a can, because the answer involves manure and it is worth knowing what we escaped.

Before paint came in a can

White lead, and the six-week dung pile

For roughly 2,300 years, the dominant white pigment in the Western world was basic lead carbonate. The “Dutch method” of making it was described by Theophrastus around 300 BC, and Pliny the Elder and Vitruvius described it too.

Here is how it was made, and it did not fundamentally change for two millennia. Thin sheets of lead were placed over pots containing a little vinegar, stacked up, and covered with decaying dung and spent tanner’s bark, which supplied the carbon dioxide. The stack sat for six to fourteen weeks. A white crust formed on the lead, was scraped off, and was ground into pigment.

Why did it dominate for so long? Opacity, and the satiny smooth mixture it made with drying oils. It also worked as an oil-drying agent, accelerated drying, increased durability and resisted moisture-driven corrosion. It was, in every respect but one, a superb product.

Milk paint, which is unimaginably old

Casein — milk protein — plus lime and pigment. A mixture of bovid milk and ochre was applied to a stone tool in South Africa roughly 49,000 years ago. Egyptians used goat’s milk as a binder on lacquer in Tutankhamun’s tomb.

And here is the fact that surprised me: before acrylics, most house paint binders that were not made from oil used casein instead, and it was manufactured industrially. Cheaper oil- and petroleum-based products displaced it. It dries matte and becomes water-resistant as it ages.

Whitewash, and the phrase that says everything

Slaked lime or chalk, which cures by reacting with atmospheric carbon dioxide to form calcium carbonate — it literally turns back into stone on your wall.

What people mixed into it tells you how improvised it was: water glass, animal glue, egg white, Portland cement, salt, soap, milk, flour, molasses, alum and soil. For color: pig’s blood produced the traditional Suffolk pink, and blue laundry dye was used for tinting.

It was used because it was nearly free, and because it is mildly antibacterial, which made it standard in dairies and barns. The American saying does the rest of the work:

“Too proud to whitewash and too poor to paint.”

I went looking for period pigment price lists and could not find one, so I am not going to invent numbers. The honest generalisation: earth pigments — ochres, umbers, siennas — were cheap because they were dug out of the ground, and bright blues and greens were expensive because they had to be manufactured or imported.

Paint in a can, and who actually did it first

Here is a correction, because I believed the wrong version myself until I checked. Sherwin-Williams did not invent ready-mixed paint.

D.R. Averill patented the first prepared or “ready mixed” paint in the United States on July 16, 1867, patent no. 66,773. The claim was for “a liquid oleaginous paint, prepared ready for use” that stayed fluid and usable without on-site mixing. The problem it solved is stated right in the patent: conventional paints required ingredients “carefully and skillfully mixed” and then separated in storage, becoming “unfit for use without regrinding or remixing.”

One nice discrepancy: the American Coatings Association says Averill was “of Ohio.” The patent record says New Gentleville, Oswego County, New York. The patent is the better authority.

Sherwin-Williams was founded in 1866 in Cleveland by Henry Sherwin and Edward Williams. Its first ready-mixed paint came out in 1873 by the company’s own account, under the marvellous product name Guaranteed Strictly Pure Raw Umber in Oil. Case Western Reserve University’s Encyclopedia of Cleveland History says 1875. Both are reputable; I am not going to silently pick one.

But the invention that actually mattered came four years later. In 1877, Sherwin-Williams patented the first resealable paint can.

Think about that for a second. Ready-mixed paint you cannot close again is a one-use product. You buy a gallon, you use a quart, and the rest is gone. The resealable can is what turned paint from a tradesman’s material into something a homeowner could buy on a Saturday, use half of, and put on a shelf. Every DIY project in the last 150 years runs through that patent.

The lead story, which is worse than you think

The thing that gets me about lead paint is not that it was used. It is that everybody knew.

Year	What was known
Medieval	Texts warn of “apoplexy, epilepsy, and paralysis” from working with lead white
1786	Benjamin Franklin writes to a friend warning of lead paint hazards, which he considered well-established
1886	Germany bars women and children from lead paint manufacturing
July 1904	Sherwin-Williams itself publishes that a French expert deemed lead paint “poisonous in a large degree, both for the workmen and for the inhabitants”
1909	France bans lead paint for interior and exterior building use
1921	The League of Nations begins working toward a ban
Feb 27, 1978	The United States bans lead paint in residential property
1992	The UK bans it from general sale
2009	U.S. threshold tightened from 0.06% to 0.009%

The largest American paint company published a warning about lead in 1904 — seventy-four years before the United States banned it in homes, and France beat America to a ban by sixty-nine years.

And it was the CPSC, not the EPA

This one gets stated wrong constantly, including by people in my industry. The U.S. residential lead paint ban is 16 CFR Part 1303, issued by the Consumer Product Safety Commission under the Consumer Product Safety Act, effective February 27, 1978.

The EPA owns a different and later thing: the Renovation, Repair and Painting (RRP) rule, which governs what contractors do with lead paint that is already on the walls. The two agencies split the job. CPSC banned the product; EPA regulates the disturbance of it.

What the RRP rule means if you are renovating in Fort Worth

This matters here, because Fort Worth has a great deal of pre-1978 housing.

• Who it covers: anyone paid to do work that disturbs paint in houses, apartments or child-occupied facilities built before 1978. That includes general contractors, painters, plumbers, electricians and property managers — not just painters.
• What it requires: renovators trained in lead-safe work practices, and both the individual renovator and the firm certified, with specific work practice standards followed.
• The de minimis exemption: minor work disturbing 6 square feet or less per room inside, or 20 square feet outside, is exempt.
• The exception that catches people: window replacement and demolition are excluded from that exemption regardless of size. Replacing a single window in a pre-1978 house triggers the federal rule — unless the components have been tested and found lead-free by a certified inspector, risk assessor or renovator.
• The pamphlet: since December 2008, renovators must give you the “Lead-Safe Certified Guide to Renovate Right” before starting work.
• The advertising restriction: a firm cannot even advertise covered renovation work in pre-1978 housing without firm certification. Which makes it easy to check.

Homeowners doing work in their own homes are not required to be certified. The lead dust does not know that. It is the primary exposure route for children, and sanding and scraping is what generates it.

Now: does paint color actually affect what your house sells for?

There are two real studies, both from Zillow, and I am going to give you the numbers and the four reasons to be careful with them — because the numbers get quoted everywhere and the caveats never do.

The 2018 study

Over 135,000 listing photos, homes sold January 2010 to May 2018, controlled for other wall colors within each room type, square footage, home age, and ZIP code home values in the listing month. Baseline: white walls.

Room	Color	Effect
Front door	Black	+$6,271
Living room	Light taupe	+$2,793
Bathroom	Light blue	+$2,786
Kitchen	Black or dark navy lower cabinets	+$1,547
Dining room	Brown	−$1,684
Kitchen	Red	−$2,310
Exterior	Yellow	−$3,408

The 2017 study

Over 32,000 photos, sold 2010 to February 2017.

Room	Color	Effect
Bathroom	Blue or periwinkle	+$5,440
Dining room	Blue	+$1,926
Bedroom	Blue	+$1,856
Living room	Brown	+$1,809
Front door	Gray or blue	+$1,514
Kitchen	Yellow	−$820
Living room	Blue	−$820
Dining room	Red	−$2,031
Bathroom	White / no color	−$4,035

Four reasons to hold these loosely

1. Zillow disclaims causation, in its own press releases. The exact wording is that the price effects “are estimates of the average premium or discount but may not be reflective of a causal difference in value compared to white walls.” That is the most important sentence in the whole topic and almost nobody who cites these studies includes it.

2. The baseline is the Zestimate, not an appraisal. The analysis compared actual sale prices to Zestimate values. So “sells for $6,271 more than expected” means $6,271 more than Zillow’s own model predicted. It is a statement about the residuals of an algorithm. If that model systematically under-predicts a category of home, any feature correlated with that category will look like it adds value. (Which is a particular problem in Texas, where sale prices are never public record.)

3. The two studies contradict each other. Look at them side by side. Living room blue was −$820 in 2017; living room light taupe was +$2,793 in 2018. And a white bathroom was the single worst performer in 2017 at −$4,035 — in an era when “paint everything white” was the standard advice everyone in my industry was giving. The headline front-door number also jumped from $1,514 to $6,271 between the two studies, though in fairness those are two different colours rather than the same one measured twice. Effects this unstable across one additional year of overlapping data are not measuring a durable property of paint.

4. Paint color is a proxy for renovation. This one is my read rather than Zillow’s, but it follows directly from what they say they controlled for. A house with a black front door and navy lower cabinets in 2018 was very likely recently and expensively renovated. Zillow controlled for square footage, home age and ZIP code. It did not control for renovation quality, finish level or staging. The paint is a marker of a renovated house, not necessarily the cause of the price.

Zillow found that homes with black front doors sold for about $6,300 more than its model predicted. That is a real finding about a real dataset. It is not evidence that painting your door black will get you $6,300 — and Zillow says so in the fine print of its own press release.

What the paint companies actually sell

Here is my favourite thing in this whole article, and it is a genuinely useful corrective.

Every autumn, the paint companies announce a Color of the Year with enormous fanfare. For 2026: Benjamin Moore chose Silhouette AF-655, “an alluring mix of rich espresso hues with subtle notes of charcoal,” inspired by the modern take on classical suiting. Sherwin-Williams chose Universal Khaki SW 6150. Pantone chose Cloud Dancer. For 2025, Pantone went to Mocha Mousse, Benjamin Moore to Cinnamon Slate, a heathered plum meeting a velvety brown, and Sherwin-Williams to Grounded.

And then people go and buy white.

Brand	Actual best sellers, stated by the company
Sherwin-Williams	Pure White, Agreeable Gray, Alabaster
Benjamin Moore	White Dove, Swiss Coffee, Simply White, Chantilly Lace
Farrow & Ball	Hague Blue, Railings, Setting Plaster
Little Greene	Mochi, Garden, Olive Colour

Of Sherwin-Williams’ three best sellers, two are white and one is a warm gray. All four of Benjamin Moore’s top sellers are white. Benjamin Moore’s own marketing director put it plainly: whites and off-whites “have once again taken top spot.”

The Color of the Year is marketing. The sales data is white paint.

There is a real trend underneath the noise, though, and it is worth knowing if you are picking colors now: the industry has moved decisively off gray and onto warm browns. Pantone went brown for 2025. Benjamin Moore went plum-brown for 2025 and espresso for 2026. Sherwin-Williams went to a warm earthy khaki for 2026, and Benjamin Moore's own stated rationale cites “growing interest in brown color families.”

So why is every new build greige?

I looked hard for a builder on the record explaining this and did not find one — not in NAHB data, not in the builder trade press, which offers only the observation that “more and more home buyers are saying that grays are their preferred interior paint colors” without explaining why.

What I did find, from a builder-marketing source, are four reasons that hang together:

• Resale and appraisal. Builders pick palettes thinking about resale, and colors tied to a specific era date quickly. The same source names “Millennial Gray” as a trend that “felt outdated within five years” — which is a builder-side admission that the gray era aged badly.
• Do not over-customize a spec home. Personalized color risks alienating buyers who want to project their own taste onto an empty room.
• Photography. Warm neutrals photograph better for listings than high-contrast schemes. In a market where nearly every buyer sees a house on a phone before they see it in person, this may be the real driver — and note that it connects straight back to the Zillow studies, which were themselves built entirely on listing photos.
• HOA compliance and resale longevity.

My honest synthesis, clearly labelled as synthesis: greige is a risk-management decision, not an aesthetic one. It is the color least likely to lose a buyer, least likely to complicate an appraisal, and best-behaved in a photograph. It is not chosen because anyone loves it. It is chosen because nobody hates it.

And the shift is already underway. Buyers “no longer want a home with stark, sterile-feeling grays” — the movement is toward warm neutrals, not away from neutrals.

What I actually tell sellers

1. Paint is the highest-return thing you can do before listing, and it is not close. Not because a color is worth $6,271, but because fresh paint reads as a maintained house, and every scuff a buyer sees becomes a thing they wonder what else you did not fix.
2. Neutral, warm, and one color through the main living space. Continuity makes a house feel larger in photographs, which is where the buying decision now starts.
3. The front door is worth a Saturday. Not because of the Zillow number, but because it is the last thing a buyer looks at while standing on your porch waiting for the lockbox to open. That is the longest they will look at any single surface all day.
4. Do not repaint an entire house to chase a color of the year. By the time it reaches the shelf it is already being replaced.
5. If your house was built before 1978, hire a lead-safe certified firm. Check the certification. It is not optional for them, and it is a cheap way to find out whether you are dealing with a professional.