Distinctive brand assets: Cadbury's purple over campaigns

September 4, 2026 · 5 min · Free, with full transcript

Is defending a single shade of purple through the courts a strategy or legal vanity? The episode argues it is the most disciplined thing Cadbury has done. Holding Pantone 2685C unchanged for decades builds mental availability, the chance a brand comes to mind at the moment of choice, which the Ehrenberg-Bass Institute links to light buyers who barely think about the category. Listeners leave with a test for their own work: cover the logo on the last five ads and see whether the colour, character, shape or sound still identifies the brand. Examples include the Nike swoosh, McDonald's arches, Tiffany Blue, Toblerone, the Michelin Man and Intel's audio mnemonic, plus where the model fails in slow, considered purchases.

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Key takeaways

  • Pick one asset you can own and commit to it for ten years, not ten months.
  • Audit the distinctive assets you already have before spending on a rebrand or a new campaign.
  • Cover the logo on your last five ads; if a stranger cannot name the brand, you have expensive wallpaper.
  • Treat colour, shape, sound, character and font as candidate assets, not only a logo or slogan.
  • Do not force the fast recognition model onto slow, considered purchases like mortgages or enterprise software.
Read the full transcript

Welcome to the Leaders Insights podcast.

Today's episode, how Cadbury built mental availability through color, not campaigns.

Cadbury has spent millions in court defending a shade of purple.

Not a slogan, not a jingle, a color.

Isn't that just legal vanity dressed up as strategy?

It's the opposite of vanity.

It's the most disciplined thing Cadbury has ever done.

And most marketers can't stomach it because it's boring.

They fought for Pantone 2685C, a specific violet, through the UK courts for years, losing

some rounds against Nestle.

That fight is the strategy.

Boring how?

Defending an asset sounds like the fun part.

The defending is fun.

The building isn't.

Building mental availability, why the likelihood that a brand pops into your head at the moment

you're choosing means using the same asset, unchanged, for decades, while every new marketing

director itches to refresh it.

The discipline is saying no to yourself.

So the consensus wrong turn is what?

Chasing campaigns instead of assets?

Precisely.

Everyone worships the campaign.

The clever film, the viral moment, the Christmas ad.

But campaigns are rented attention.

Love assets, horror, colors, shapes, characters you own and repeat, are the thing that gets

you recognized in half a second on a shelf.

Cadbury understood the purple does more work than any 30-second spot.

Give me the mechanism.

Why does a color outperform a message?

Because buying is fast and lazy.

In a supermarket, you scan a chocolate aisle in under two seconds and grab the thing

your brain files under chocolate fastest.

Purple is that shortcut.

The Ehrenberg-Bass Institute, the marketing science group in Australia whose whole model

this is, found most brand growth comes from light buyers who barely think about you.

You don't persuade them.

You just need to be mentally noticeable at the moment of the grab.

That's convenient for a brand that already owns purple.

What about everyone who missed the land grab?

Fair hit, but distinctiveness isn't only color.

Think the Nike swoosh, the McDonald's arches, the specific Tiffany Blue, Toblerone's

triangle, the Michelin Man.

Assets can be shape, sound, character, even a font.

The Intel 4-Note Audio Mnemonic did the same job with sound.

What matters is you pick something you can own and then you commit for 10 years, not

10 months.

10 years?

No CMO survives 10 years.

Isn't that the real reason this doesn't happen?

That's the ugly truth.

The average tenure of a chief marketing officer, the person running all this, is under four

years.

So they arrive, they need a win, and rebranding is the fastest way to look busy.

Nobody got promoted for keeping the logo exactly the same.

Cadbury's advantage is partly cultural stubbornness, and stubbornness doesn't fit on a slide.

So you're telling ambitious marketers to do less?

That's a tough sell.

I'm telling them to do less of the wrong thing.

Spend the energy you'd waste on a rebrand auditing what you already own.

Ask, if I stripped my name off this ad, would anyone know it's us?

For most brands, the answer is no.

And that's a catastrophe they've been paying an agency to create.

Where does the purple approach not transfer?

Because it can't be universal.

It struggles in categories bought slowly and rationally.

Nobody picks a mortgage or enterprise software off a shelf in two seconds.

There you still want distinctive assets for recognition.

But the deal is done by salespeople in spreadsheets, not by a violet rapper.

Customer-led mental availability is strongest in fast, cheap, habitual buying.

Confusing the two is how a bank ends up with a mascot nobody needed.

And the funny thing is, half the people defending brand purpose think they're doing this.

They're not.

Purpose is a mission statement in a drawer.

A color is a thing on a shelf.

One of them has been sued over.

Guess which one the business actually values.

Give me the one thing a listener does tomorrow.

Take your last five ads and cover the logo.

If a stranger can't name the brand from what's left, wantur, the color, the character, the

sound, you don't have distinctive assets.

You have expensive wallpaper.

Fix that before you spend another pound on a campaign.

Expensive wallpaper.

That's going on a slide somewhere.

That's it.

The CMO Decision Tools are live at MBA-training.com.

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