⁂ Regex Generator

Describe in plain words what you need to match and get a correct regex — broken down token by token, with matching and non-matching examples.

• Correct, not clever. Robust patterns that prioritize accuracy over one-liners.
• Explained token by token. You learn why it works, not just what to paste.
• Tested both ways. Example strings that should — and shouldn't — match.

^#([0-9a-fA-F]{3}|[0-9a-fA-F]{6})$