Key takeaways
- Usually the highest classic symbol.
- 777 is shorthand for a jackpot.
- Red, white and blue sevens on some machines.
- Starburst's top symbol with the BAR.
In shortThe seven is the usual top-paying symbol on a classic slot machine, and 777 has become shorthand for winning.
Why seven?
Seven carries luck in many traditions, and it suited a machine's top line. It joined the fruit and BARs on machines of the mid-twentieth century.
How sevens pay
| On the line | Pays |
|---|---|
| Three matching sevens | The top prize or close to it |
| Three sevens, mixed colours | A lesser prize on some machines |
Typical pattern; paytables vary.
On our logo
The three sevens in this site's logo are the classic jackpot line.
Elsewhere on the site: Paylines and ways to win, UK slot machine categories, Should you bet max on a slot machine? and Pub slot machines.
Coloured sevens
Some classic machines use red, white and blue sevens. All three in order pays the top prize; three of one colour pays less; any three sevens pays less again. As with BARs, the mix increases how often something lands.
Beyond the reels
777 appears in casino names, logos and adverts worldwide as a symbol of winning. On a machine it is one line in a paytable.
Keep reading: Ways-to-win slot machines, Video slot machines, UK slot machine rules and The bell symbol.
Next: how slot machines work, or seven slots taken apart.
Slot figures are developers' published defaults, each confirmed against two sources; the version at your casino can differ. UK land-based stake and prize limits and online rule dates were checked against Gambling Commission and licensing authority sources on 6 October 2026. History follows commonly cited accounts. Offer terms dated 5 October 2026. How we check. 18+. Free help: 0808 8020 133 or safer gambling.
Frequently asked questions
What does 777 mean?
The classic jackpot line.
Is seven the top symbol?
On most classic machines.
Why is seven lucky?
A long cultural association.
Which modern slot uses sevens?
Starburst.