A crew member's Old English Sheepdog wandered onto a Dulux shoot in 1961. The director kept the footage. Sixty-five years later, that happy accident remains the most valuable brand asset in British paint and possibly British advertising.

The new campaign, created by Ogilvy UK and directed by Si&Ad through Academy Films, introduces Dorothy, a 21-month-old Old English Sheepdog who can shake Dulux paint colours from her shaggy coat. She hasn't mastered the power yet. Colours fly everywhere — across her owner Lily's new flat, over one unfortunate delivery driver. But Dorothy hones her craft over the years, and the film tracks Lily and Dorothy's life together through the rooms they transform: becoming a pet parent, kickstarting a side project, starting fresh after a breakup. Each milestone marked not with ceremony but with a fresh colour on the walls.

The film taps into a cultural shift: traditional milestones — marriage, children, first home — are happening later than in previous generations, if at all. Dulux wanted to celebrate the alternative moments that actually define how people live now. Becoming a dog mum. Turning a spare room into a studio. Choosing a colour that's yours, not a compromise.

Sam Balloch, head of brand for DIY at AkzoNobel: Dulux is about beautiful colours that reflect how people actually live today. This campaign gets that — it celebrates the real moments that matter to us now, the ones we want to remember. And it does it all through colour, which is what we do best."

For 65 years, the Dulux Dog has been at the heart of British homes — witnessing first steps, new beginnings, and the small moments that turn houses into homes. But Balloch acknowledged the brand had been underusing its most famous asset, treating the dog as a sign-off rather than a storyteller.

Jules Chalkley, chief executive creative director at Ogilvy UK: "Everyone loves a brand mascot and the Dulux dog has achieved true cultural icon status. Bringing it back to the heart of such a modern and joyful story about transforming the way we celebrate life's big milestones feels so fitting."

The Dulux dog belongs to that rare group of British brand icons people don't just recognise but genuinely feel warmth towards. It's a distinctive asset that's earned its place through decades of real connection with people's lives. In a landscape where brands constantly try to appear newer and louder, there's something quietly powerful about Dulux leaning into what it already owns — familiarity, charm, and the feeling of home.

The integrated campaign rolls out across TV and YouTube, led by WPP Media, with social cutdowns on Meta and Pinterest and a consumer PR push through Cirkle. Dulux is also investing in creator partnerships and paid social, recognising that Instagram and Pinterest are where people actually engage with the category now.

One quiet detail worth noting. The Old English Sheepdog is on the Kennel Club's Vulnerable Native Breeds list — registrations peaked at nearly 6,000 in 1979 and have dropped to a few hundred a year. The breed that built one of Britain's most recognisable advertising icons is quietly disappearing, too big and high-maintenance for modern living. Dulux supports the Old English Sheepdog Rescue and Welfare charity, and Dorothy attended Crufts 2025. But there's something worth sitting with here — a brand celebrating modern pet parenthood through a dog breed that modern life is slowly making impractical. Nobody in the campaign says this. The warmth says it for them.

Dulux has kept this mascot through ownership changes, agency transitions, and decades of marketing directors who could have killed it. Some pushed the dog to the background. Someone always brought it back. That patience — the willingness to let an asset compound rather than chase something new — is the hardest thing to replicate in brand building. Dorothy doesn't know she represents 65 years of compounding equity. She just shakes paint out of her fur and looks confused about it. That's probably why it works.