Why Casinos Use Chips Instead of Cash: A Short History

A quarter of New Zealanders now prefer paying for everyday things with their smartphone, up from 15% in 2024, according to Payments NZ’s 2026 consumer research. Most of us are already comfortable with money that doesn’t look like money.

Casino chips got there first, by well over a century.

Those small coloured discs have outlasted gold nuggets, ivory counters and plenty of banknote redesigns, and the reasons they’ve stuck around are refreshingly down to earth. We’ll look at where chips came from, why their colours are so easy to read, how they make counting simple and why they still suit a country that’s leaving its wallet at home. Along the way, you’ll see the design research and Kiwi payment data behind each point.

If you play games, a lot of this will feel familiar. Plenty of us first come across chip-style tables on a screen, and the live dealer tables at Smokos still use the same visual cues that made physical chips work so well in the first place.

Clay, Ivory and a Bit of Bone

Before chips had a standard look, players used whatever was to hand. Poker Foundry’s history of poker chips lists gold, coins, ivory, bone and wood among the early tokens laid down at card tables. They did the job, more or less. Still, no two players’ stacks looked alike, and settling up at the end of a night could be slow going.

The 1880s brought a real step forward. Compression-moulded clay chips arrived, giving tables a token that was consistent in size and feel. By the 1950s, clay composite had become the standard, and ceramic chips followed from the mid-1980s, allowing crisper designs and sharper detail.

Then came the finer touches. According to company history shared on the Poker Chip Forum, Paul-Son, founded in 1963, is credited with embedding encoded microfilm in chips and developing full-colour chip graphics in the early 1990s. That’s the company’s own account rather than independent research. Even so, it fits the wider pattern, where each upgrade made chips a little harder to copy and a little easier to read.

If you’ve spent time in a MOBA, you’ll spot the parallel straight away. Gold in a match stands in for value, and it’s built so you can check it at a glance while you’re busy doing something else. Chips handled that same problem at real tables long before anyone designed an in-game shop.

Better materials took care of durability. The next job was making value obvious to anyone glancing at the table, and that’s where colour comes in.

Colour Me Readable

Think about the last time you judged an item’s rarity by its colour, or read a health bar without looking at the numbers. You didn’t need to read a single word, because your eyes did the sorting for you. A chip rack works the same way.

Researchers have been testing this instinct for decades. A 2003 paper in Information & Management examined how highlighting and text colour coding affect searching and reading performance, offering an early look at how colour helps us find information faster. More recently, a 2024 study published on arXiv compared colour schemes. Participants performed significantly better with non-analogous schemes, meaning clearly different colours, than with analogous ones built from neighbouring shades.

That’s a handy way to think about a chip set. White, red, green and black sit far apart from one another, so even a quick look tells you which is which. If every value came in a slightly different blue, you’d be squinting all night.

There’s no worldwide colour code for chips. As Unanswered’s guide to chip colours and values explains, black for $100 is one of the most consistent values you’ll find. Nevada has no colour regulations, while New Jersey’s schemes are more uniform. Chip colours grew mostly from habit and good sense, much like the colour rules you take for granted as a gamer without ever being taught them.

If you’d like to get used to how a table looks and moves before playing for real, Smokos offers free demo play. It’s a relaxed way to learn the layout and pace of a game at your own speed.

Colour tells you what you’re holding. Knowing how much is there comes down to shape and stacking.

Stack, Glance, Done

A neat stack of chips is one of the easiest things in a casino to count. Chips share a uniform size and shape, so stacks are simpler to tally than currency. Staff can check them quickly by sight, and chips can even be weighed instead of counted one by one.

Design research supports that sense of order. A 2022 peer-reviewed study tested how colour coding and layout coding affected the way people searched for navigation icons, measuring both reaction time and accuracy. How items were arranged made a clear difference to how efficiently people found what they needed, and tidy, single-colour stacks give a table exactly that kind of order.

Side by side, the difference is easy to see:

Feature	Chips	Cash
Size and shape	Uniform across each set	Varies between notes and coins
Counting	Stacks tallied by sight, or weighed	Notes counted one at a time
Reading value	Colour signals value at a glance	Colour-coded notes, but they fold and overlap
Table technology	RFID readers can scan chips in seconds	Not designed for table readers

Some tables now go a step further. E-play.io reported in April 2024 that RFID readers used in Macau can read up to 500 chips per second, whether they’re stacked as high as 40 or spread across the felt. The chip itself barely changes; the table simply learns to read it as well. The same thinking carries over to your screen. On Smokos’ live dealer tables, on-screen chips are coloured and stacked so you can see what’s in play at a glance, much as you would at a physical table.

It makes you wonder, if a stack of clay can be read in about a second, what other everyday objects could borrow that design?

The Joy of Pocket Money

Back to that phone in your pocket. New Zealand is moving towards digital payments, yet the qualities we look for haven’t changed much at all. In the same Payments NZ research reported by RNZ, 55% of respondents said safety and security was the most important factor when choosing a new way to pay.

Steve Wiggins, chief executive of Payments NZ, summed it up this way:

“New Zealanders are embracing more digital ways to pay, but the fundamentals remain consistent. People want payments that are safe, affordable, accessible and easy to use.”

Hold a chip up against that list and it holds its own. Here’s what chips got right early:

Safe, with features like embedded microfilm making them harder to copy
Easy to read, since colour alone signals value
Quick to count, thanks to uniform stacks
Portable, light enough to slide across a table in a single motion

That’s why the token idea keeps finding new homes. Smokos is a good example, with a lobby of around 7,000 pokies alongside jackpots, crash games and live tables, each built around the same simple principle: value should be clear the moment you look at it.

Small Discs and Big Design Lessons

Chips have lasted because they’re good design. Clear colours, matching shapes and easy stacking let you read a table in seconds. Every material upgrade, from clay to ceramic, kept that idea intact while making chips sturdier and more secure.

Seen this way, a chip could be one of the earliest everyday user interfaces: a physical object shaped so you understand it the instant you see it.

Its story is well looked after, too. The Casino Collectibles Association’s Chipguide holds more than 300,000 images, and the Casino Chip & Gaming Token Collectors Club traces its start to 1988, when roughly 20 collectors got together. As you and other Kiwis keep tapping phones instead of counting notes, those archives are a reminder that the search for clear, trustworthy money started long before apps.

So next time you spot a tidy stack of colour, will you see money, or a century-old piece of clever design?