Have you ever wondered why some people write “colour” while others write “color”? If you’re searching for “colour or color”, you’re not alone.
Many writers, students, and professionals get confused about which spelling to use in emails, reports, or social media posts. The truth is, both spellings are correct—they just depend on where you are in the world.
Understanding the difference can save you from embarrassing mistakes and make your writing look polished and professional.
In this guide, we’ll explain the difference, show examples, explore the origin, and provide tips on when to use each spelling.
Colour or Color – Quick Answer
- Colour → British English spelling
Example: She loves the colour blue. - Color → American English spelling
Example: He painted the room a bright color.
Quick Tip: Use colour in UK English and color in US English.
The Origin of Colour/Color
The word comes from the Latin “color”, which passed into Old French as “colur”. Early English used “colour”, which became standard in British English.
When American English evolved, spelling reforms simplified many words, dropping unnecessary letters—thus, “color” became the standard in the United States.
Fun Fact: Other similar words follow this pattern, like favour/favor and honour/honor.
British English vs American English Spelling
| Feature | British English | American English | Example |
|---|---|---|---|
| Standard spelling | colour | color | The colour of the sky / The color of the sky |
| Usage region | UK, Canada, Australia, India | USA | She loves colour / He prefers color |
| Related words | favourite, honour, neighbour | favorite, honor, neighbor | My favourite book / My favorite book |
Tip: Stick to one style consistently in your document.
Which Spelling Should You Use?
- US Audience: Use color.
- UK/Commonwealth Audience: Use colour.
- Global Writing: Consider your readers; if international, UK spelling is often preferred in formal writing.
Rule of Thumb: Match the spelling to the style guide of your organization, school, or publication.
Common Mistakes with Colour/Color
- Mixing spellings in one document: “I like the color of your colour.” ✅ Wrong
- Using UK spelling for US audience: “He painted the room a bright colour.” ✅ Usually wrong for American readers
- Forgetting related word changes: “My favorite color is red.” ✅ Correct in US, “My favourite colour is red.” ✅ Correct in UK
Colour/Color in Everyday Examples
- Email:
US: “Please update the color scheme in the report.”
UK: “Please update the colour scheme in the report.” - Social Media:
US: “I love this color palette!”
UK: “I love this colour palette!” - News Articles:
US: “The new color trend for 2025 is teal.”
UK: “The new colour trend for 2025 is teal.” - Formal Writing:
Academic journals often follow US or UK style, depending on the journal’s location.
Colour or Color – Google Trends & Usage Data
Search trends show that:
- Color dominates in the USA.
- Colour dominates in the UK, Canada, Australia, and India.
- Globally, “colour” is slightly more searched due to the number of English-speaking countries using British spelling.
Comparison Table: Keyword Variations
| Keyword Variation | Usage Popularity | Region |
|---|---|---|
| Colour | High | UK, Canada, Australia, India |
| Color | High | USA |
| Colour/color combined searches | Moderate | Global |
FAQs
1. Is colour or color correct?
Both are correct; use colour in British English and color in American English.
2. Can I mix the spellings?
No. Mixing styles can confuse readers and appear unprofessional.
3. What about related words?
British spelling: favour, honour, neighbour.
American spelling: favor, honor, neighbor.
4. Which spelling should I use in school assignments?
Follow your school’s style guide—usually UK for British schools and US for American schools.
5. Is colour/color used in technical writing?
Yes. Use the version that matches your style guide. Consistency is key.
6. Why did American English drop the ‘u’?
Spelling reform simplified many words to make writing shorter and more phonetic.
7. Which spelling is better for international audiences?
UK spelling (colour) is generally preferred for global audiences.
Conclusion
Choosing between colour and color is simple once you know your audience. Use colour for UK and Commonwealth readers, and color for American readers.
Consistency is key in professional, academic, or digital writing. Pay attention to related words like favour/favor and honour/honor, and stick to one spelling throughout your document.
Whether you’re writing emails, social media posts, or formal reports, knowing the right spelling enhances clarity and credibility. Understanding this small detail helps your writing appear polished, professional, and culturally appropriate.

Hi, I’m Ernest Hemingway, the author of GrammarNestly.com.
I’m a grammar expert and language enthusiast who loves making English simple and practical.
When I’m not writing about grammar, I enjoy reading, exploring new writing styles, and helping others improve their communication skills.