Yes, an employer can require women to wear makeup and men to keep their hair short, and no, that does not automatically violate federal law. Title VII bars discrimination because of sex, but the courts that have actually ruled on dress and grooming have read that ban narrowly for decades, and the case most people invoke to say otherwise does not say what they think it says.
What Title VII actually bars
The statute itself is short. 42 U.S.C. Section 2000e-2(a) makes it unlawful for an employer “to fail or refuse to hire or to discharge any individual, or otherwise to discriminate against any individual with respect to his compensation, terms, conditions, or privileges of employment, because of such individual’s race, color, religion, sex, or national origin.” Dress and grooming rules count as “terms, conditions, or privileges of employment,” so a dress code is squarely inside the statute’s reach. The word doing the work is “because of.” A rule has to treat someone worse for a protected reason, not merely differently, and that distinction is where sex-based dress codes have consistently survived.
The case everyone cites, and what it actually held
Darlene Jespersen worked as a bartender at Harrah’s casino in Reno for close to twenty years before the company rolled out its “Personal Best” appearance program in 2000. The policy required women to wear foundation, blush, mascara, and lipstick, and it barred men from wearing any of it. Jespersen refused, on the ground that makeup made her feel, in the record’s own words, “dolled up” in a way that undercut her sense of herself, and Harrah’s fired her for noncompliance.
The full Ninth Circuit, sitting en banc, ruled against her in Jespersen v. Harrah’s Operating Co., 444 F.3d 1104 (9th Cir. 2006). The court applied what is known as the unequal-burdens test: a dress or grooming rule that differs by sex is not disparate treatment on its own, so long as it does not place a heavier burden on one sex than the other. The majority held that Jespersen had simply failed to build the record needed to win on that theory. She offered no evidence, timed or costed, showing the makeup and hairstyling requirements demanded more of women than the grooming standard Harrah’s set for men. Without that comparison in the record, the unequal-burdens claim failed as a matter of proof, not as a matter of law that would have doomed it regardless.
Jespersen also tried the theory that had worked in Price Waterhouse v. Hopkins, 490 U.S. 228 (1989), where the Supreme Court held that an employer who denied a partnership to Ann Hopkins partly because she was seen as insufficiently feminine, telling her to “walk more femininely, talk more femininely,” had discriminated because of sex. The Court’s phrase there still anchors the doctrine: an employer “who acts on the basis of a belief that a woman cannot be aggressive, or that she must not be, has acted on the basis of gender.” Jespersen argued the makeup rule was that same stereotype, dressed as a grooming standard. The en banc majority rejected it on the same evidentiary ground, writing that the record was “devoid of any basis for permitting this particular claim to go forward, as it is limited to the subjective reaction of a single employee.” A stereotyping claim needs proof that the rule was motivated by a belief about how women should look or act, not just an employee’s own discomfort with a policy that applies to everyone in her position.
Two judges dissented, and their disagreement shows where the doctrine’s real seam is. Judge Pregerson argued the makeup requirement was itself the stereotype, writing that requiring female bartenders to wear full makeup is evidence of discrimination because of sex on its face, regardless of what the record said about burden. Judge Kozinski argued the burden was obvious enough that it needed no further proof, writing that it is hard to imagine a woman could “put on her face,” as the saying goes, in the time it takes a man to shave. Neither dissent carried the court. The Ninth Circuit’s answer is the law of that circuit, and it has not been overturned, and the Fifth Circuit reached a similarly permissive result decades earlier in Willingham v. Macon Telegraph Publishing Co., 507 F.2d 1084 (5th Cir. 1975) (en banc), upholding a men’s hair-length rule under the same basic logic. Sex-differentiated dress codes stay lawful until an employee can show, with evidence, that the code costs one sex more than the other, or that it was adopted to enforce a stereotype rather than to standardize appearance.
Where the line is genuinely hard
Religion is a different statute and a different standard. In EEOC v. Abercrombie & Fitch Stores, Inc., 575 U.S. 768 (2015), a 17-year-old named Samantha Elauf interviewed for a job at an Abercrombie store in Tulsa wearing a headscarf. The company’s “Look Policy” barred caps, and it declined to hire her without ever asking whether the scarf was religious. The Supreme Court ruled 8 to 1 for the EEOC, with Justice Scalia writing that an employer violates Title VII if avoiding the need for a religious accommodation is a motivating factor in the decision, and that the applicant does not have to prove the employer had confirmed the practice was religious first. Justice Thomas dissented in part, arguing that applying a neutral policy the same way to everyone, without a discriminatory motive, should not count as intentional discrimination. He did not get a majority. The rule that survived is that an otherwise neutral dress code has to bend for a religious practice unless doing so would impose an undue hardship on the business, and the employer bears real risk for guessing wrong rather than asking.
The ADA runs on its own separate track. 42 U.S.C. Section 12112(b)(5)(A) makes it discrimination to fail to make reasonable accommodations for the known limitations of a qualified employee with a disability, unless the accommodation would be an undue hardship. A uniform or footwear rule that cannot flex for a documented medical need can violate the ADA even where the same rule would survive a Title VII sex claim without difficulty, because the two statutes ask different questions: Title VII asks whether the rule burdens the sexes unequally, the ADA asks whether the employer refused a workable accommodation.
The part that is not settled
Bostock v. Clayton County, 590 U.S. 644 (2020), is the newest piece and the one most often misread into settling dress codes generally. The Court held 6 to 3 that firing an employee for being gay or transgender is discrimination because of sex, extending Title VII’s reach in a way the 1964 Congress did not contemplate. But Justice Gorsuch’s majority opinion drew its own boundary in the same breath: “Under Title VII, too, we do not purport to address bathrooms, locker rooms, or anything else of the kind.” Dress codes fall inside that reserved category. Bostock changed who counts as protected by sex discrimination law. It did not say what a dress code has to look like for a transgender employee, and it said so on purpose.
That gap is still being litigated rather than resolved. The EEOC’s 2024 harassment guidance had taken the position that requiring a transgender employee to follow the dress code matching their sex assigned at birth could itself be harassment. In May 2025, a federal court in the Northern District of Texas, in State of Texas v. EEOC, vacated the gender-identity portions of that guidance, including its dress-code language, on the ground that the agency had read “sex” more broadly than Title VII’s text supports. Coverage of the ruling from Morrison Foerster, Lexology, and Jackson Lewis agrees on the outcome and the date; the EEOC has since stated the vacatur applies nationwide, not only to the parties in the case. As of this writing, checked August 2026, an employer’s obligation toward a transgender worker’s dress code sits in a gap Bostock left open on purpose and the EEOC’s own guidance no longer fills, a description of where the law stands rather than advice for a specific dispute. An employee or employer with a live disagreement should check the EEOC’s current published position and talk to a lawyer rather than rely on a single article.
What this adds up to on the floor
Put the cases next to each other and the shape is more permissive than the internet’s shorthand version, and more particular than “employers can do whatever they want.” An employer can tell women to wear makeup and men to shave, the way Harrah’s did, and win, provided nobody can show the rule costs one sex more or exists to punish nonconformity to a stereotype. It cannot make a Muslim employee choose between a headscarf and a paycheck without a real hardship to point to, the way Abercrombie tried and lost. It cannot ignore a documented disability that a small adjustment to a footwear or uniform rule would fix. And on the newest question, what the code has to allow for a transgender worker, the Supreme Court has been explicit that it has not decided, and a federal court has just pulled back the agency guidance that had tried to answer it anyway.
A dress code is a private company’s own rule until one of these statutes reaches in and says otherwise. We keep ours simple for the same reason a lot of small clothing companies do: heavyweight cotton, a boxy cut, a rose that points left on the chest, no expectation that a customer wear it to any particular specification once it leaves our hands.