The short answer
Green on Turnitin means a low similarity score: from one word up to 24% of your text matches other sources, in the Feedback Studio view. Blue means no matching text. Some Turnitin views swap blue and green, so green can mean 0%. Green is a prompt to review the matches, not a verdict.
What does green on Turnitin mean?
In the Feedback Studio view, green means a low similarity score: one word up to 24% of your submission matches other sources. Turnitin's guide for students lists it as the second band, just above blue, which means no matching text at all. As of October 2026 that is how Turnitin describes it for Feedback Studio, Feedback Studio with Originality and Originality Check.
The colored icon sits next to your score. It is a quick sort for the reader, nothing more. It tells your instructor how much of the text matched, not whether the matches are acceptable.
Is green good on Turnitin?
Green is a low-similarity band, so it is usually a good sign. But Turnitin says there is no fixed score that is right for everyone. Every school, instructor or assignment can set a different amount of matching text as acceptable, so your syllabus and your instructor's instructions come first.
Green also does not clear a paper of every problem. The next sections explain why the same percentage can show a different color, and why even a low score needs a quick look at what actually matched.
What do the blue, green, yellow, orange and red bands mean?
Turnitin's similarity score runs from 0% to 100%, and each range gets a color. Turnitin publishes two classic schemes, and they differ only at the low end. In the Feedback Studio scheme blue is 0% and green is 1-24%. In the Similarity and SimCheck scheme the two are swapped: green is 0% and blue is 1-24%.
| Color | Feedback Studio, Feedback Studio with Originality, Originality Check | Similarity and SimCheck |
|---|---|---|
| Blue | No matching text (0%) | 1-24% matching text |
| Green | One word to 24% matching text | 0% matching text |
| Yellow | 25-49% matching text | 25-49% matching text |
| Orange | 50-74% matching text | 50-74% matching text |
| Red | 75-100% matching text | 75-100% matching text |
Yellow, orange and red mean the same thing in both schemes. Read them as a rising amount of matching text, with red meaning most of the paper matched. They are a reading order for your instructor, not a grade or a penalty.
Why does my Turnitin color look different from my friend's?
Because the scheme depends on the report version and the way your school connects Turnitin. Turnitin lists three versions: the classic Feedback Studio report, the classic Similarity report for Similarity and SimCheck accounts, and the Enhanced Similarity Report. Two students at different schools can be on different ones.
Some schools go further and use their own bands. A SUNY Empire State University help page says its Brightspace scores are blue for 0-20%, green for 21-40%, yellow for 41-60%, orange for 61-80% and red for 81-100%. That is a different scale from either Turnitin guide. It is the clearest example of why the number matters more than the color.
| Similarity score | Feedback Studio | Similarity and SimCheck | SUNY Empire Brightspace example |
|---|---|---|---|
| 0% | Blue | Green | Blue |
| 10% | Green | Blue | Blue |
| 22% | Green | Blue | Green |
| 30% | Yellow | Yellow | Green |
| 55% | Orange | Orange | Yellow |
| 80% | Red | Red | Orange |
So a friend with a green 22% and you with a blue 22% may be looking at the same result in two schemes. Compare percentages, not colors.
How can I tell which color scheme my school uses?
You can usually settle it in a few minutes without any special tools. Work through these checks in order and stop when the answer is clear.
- 1
Read the number first. Write down the exact percentage next to the colored icon. The number is the same in every scheme, so it is the one thing you can trust when colors disagree.
- 2
Find out which report you are in. Turnitin names three versions: classic Feedback Studio, classic Similarity (including SimCheck) and the Enhanced Similarity Report. If your viewer looks like the newer one, Turnitin points you to its guide for the enhanced experience.
- 3
Look for a legend or help page. Many learning management systems and school IT pages print the exact bands for their setup, as the SUNY Empire page does. Search your school's Turnitin help page before assuming the generic chart applies.
- 4
Match the number to the right table. Once you know the version or the school's bands, place your percentage in the right row. If nothing is published, treat the color as unconfirmed and rely on the number.
- 5
Ask your instructor what they review. Ask whether they look at the overall score, at the body text only, or at the matches themselves. That tells you what actually counts in your course.
What is Turnitin, and how does it work?
Turnitin is a text-matching service that schools license, and it compares each submission against a database. Turnitin says plainly that it does not check for plagiarism. It highlights where your writing is similar to its sources, and a person decides whether those matches are acceptable. The Similarity Report is the tool that shows the matches.
The score is simply the share of your text that matches other sources. Even properly quoted and referenced text still shows up as a match, because the tool matches words, not intent.
What does Turnitin check your paper against?
Turnitin says its database includes billions of web pages, both current and archived, a repository of works students have submitted before, and thousands of periodicals, journals and publications. Instructors can choose which of these a submission is compared with, so the setup can differ between classes. In the newer report the options are the student database, internet content, and periodicals, journals and publications, with all three selected by default.
That is why the score depends on the setup as well as on your writing. A paper checked against fewer sources can show a different percentage than the same paper checked against all of them.
What do the highlight colors inside a Turnitin similarity report mean?
The colors inside the opened report are a separate system from the score color. In the newer Enhanced Similarity Report, each match is highlighted in the color of its match group, and the four groups depend on whether the matched text is quoted and cited. This is often more useful than the overall band.
| Match group | What Turnitin says it means |
|---|---|
| Not Cited or Quoted | Matching text that is not written as a quotation and has no citation to its original source. |
| Missing Quotations | The text is cited, but the match is so exact that it may also need quotation marks. |
| Missing Citation | The text is written as a quote, but has no citation to its original source. |
| Cited and Quoted | The text has a quotation and a citation to a source. Review it for your preferred formatting. |
Read together with the score, the groups tell a clearer story. A 20% score made mostly of cited and quoted text is a different situation from a 12% score where the matches are not cited or quoted. Turnitin's own guidance on high similarity scores says a higher percentage is not an automatic sign of plagiarism and can point to a need for better citation or paraphrasing skills.
Turnitin's AI writing report is a different report again. Its percentage is independent of the similarity score, and AI writing highlights are not shown in the Similarity Report. Our guide on whether Turnitin detects AI explains who can see that score and what it means.
Does a green score mean there is no plagiarism?
No. A low score means little text matched Turnitin's sources, not that the work is original. Turnitin's guide for instructors says a low score does not guarantee the absence of plagiarism, and gives contract cheating and content spinners as examples that can produce a low score for work that is not the student's own.
The reverse also holds. A very low score can mean the paper uses few sources. Turnitin's student guide says zero similarity may indicate that you are not including any source-based evidence, which is a requirement for many assignments. Some similarity is expected.
When is a higher similarity score expected?
Turnitin says longer assignments tend to score higher because there is more text to match, and that research papers and literature reviews full of quotes and citations naturally score higher. It lists research writing and analytical writing as genres where similarity is expected, and narrative, creative and reflective writing as genres where it is not.
What can push a Turnitin similarity score up or down?
Several ordinary things move the number without any misconduct, and Turnitin's own scenarios show most of them. The table below sets out the common ones and what Turnitin's guides say about each. The fixes are mostly in how the report is set up, so they are usually your instructor's to make.
| What you see | Why it happens | What Turnitin's guides suggest |
|---|---|---|
| Your own name is highlighted | A past submission carried your name and small matches were not excluded. | The instructor can exclude small matches. Excluding 10 words should safely exclude a name. |
| Your final draft scores 100% | Earlier drafts of the same paper were saved to the repository and now match the final. | The instructor can exclude your previous submissions. Students are advised to submit only the final draft to the private repository. |
| A heavily quoted paper scores 53% | Quotes and a long bibliography were counted as matches. | The instructor can exclude quotes and bibliography from the report. |
| The score reads 0% but matches exist | The score was rounded down to 0% on a large document. | Open the report and read the matches. The rounded score does not mean nothing matched. |
| No score appears | The instructor turned off student access, or the report is still generating. | Wait, or ask your instructor. A resubmitted paper may take up to 24 hours to produce a new report. |
Turnitin's filters are the main tool for this. Its guide to exclusion filters describes excluding the bibliography, quoted text, cited text and small matches. In the newer report the small-match default is 8 words, which is also the minimum. As a student, any exclusions you make yourself are temporary and do not change the official score your instructor sees.
What should you do when you see green, or any other color?
Open the report and look at where the matches sit before you decide anything. Check whether they are in the reference list, in quotations, or in body paragraphs. Short scattered matches in common phrases are usually minor. A long highlighted block from one source in your own paragraphs needs a rewrite or a quotation and a citation.
Then check your instructor's expectations. If your course has a threshold, follow it, and if you are near it, ask whether the overall score or the body text is what counts. Save your outlines and drafts as you work so you can show how the paper developed if a question ever comes up. Our guide on what to do if you are accused of using AI covers the same record-keeping habit.
Where Plagino fits
Plagino is not affiliated with Turnitin, and nothing it shows will match your school's Turnitin score. Its plagiarism checker compares a .docx with open-access academic papers and shows the exact overlapping words, which can help you spot an uncited passage before you submit. Its AI detector looks at AI writing, which is a separate question from similarity color.
On AI detection, Plagino has measured one thing. In its March 2026 benchmark of 1,000 documents (500 AI-written and 500 human-written), Turnitin caught 98.2% of the AI documents and wrongly flagged 1.4% of the human ones. That benchmark covers AI detection only, and it says nothing about similarity colors.
Frequently asked questions
Is green good on Turnitin?
Usually, yes. Green in the Feedback Studio view means one word to 24% matching text, which is a low-similarity band. It is still worth opening the report to see where the matches are, because Turnitin says a score alone cannot show whether plagiarism occurred.
What does blue mean on Turnitin?
Blue usually means no matching text in the Feedback Studio view. In the Similarity and SimCheck view, blue instead covers 1-24%. Turnitin says the color scheme can vary by integration, so check the percentage next to the icon.
What does yellow mean on Turnitin?
Yellow means 25-49% matching text in both of Turnitin's classic schemes. It does not mean plagiarism. It means a larger share of the text matched, so it is worth opening the report to see what the matches are.
What does orange mean on Turnitin?
Orange means 50-74% matching text in both classic schemes. Turnitin's guides show how a heavily quoted paper with a long bibliography can reach that range when quotes and references are not excluded. The instructor decides whether the matches are acceptable.
What percentage is red on Turnitin?
Red means 75-100% matching text in both classic schemes. Some schools use their own bands, such as red for 81-100% at SUNY Empire State University. A very high score can come from drafts saved to the repository, so check what matched before drawing conclusions.
Why is my blue score not 0%?
You are probably looking at the Similarity or SimCheck scheme, where blue covers 1-24% and green is 0%. A school's own settings can also change the bands. Compare the exact percentage with your school's published ranges.
Is 20% similarity okay on Turnitin?
There is no universal answer. In the Feedback Studio scheme 20% falls in the green band, but Turnitin says there is no fixed score to aim for and that each school or instructor sets its own expectations. Check your syllabus and look at where the matches sit.
Does Turnitin check for plagiarism?
Not by itself, according to Turnitin. It compares your submission with its database and highlights where text is similar. A person then decides whether the matches are acceptable.
Why is my whole bibliography highlighted?
Reference lists use standard formats, so they often match other documents. Turnitin has an exclude-bibliography filter that your instructor can switch on, and students can apply one to their own view. A student's own exclusions are temporary and do not change the score the instructor sees.
Does Turnitin show quotes as matches?
Yes. Turnitin says quoted text still shows as a match even when you use quotation marks and references. Instructors can exclude quotes to focus on your own writing.
Do the Turnitin colors show an AI score?
No. The similarity colors only describe matching text. Turnitin's AI writing indicator is a separate percentage that is independent of the similarity score, and its highlights do not appear in the Similarity Report.
Why can't I see a score or color on my Turnitin submission?
Turnitin gives two reasons: your instructor turned off student access to the report, or the report is still being generated. A resubmitted paper may not produce a new report for 24 hours. If nothing appears after that, ask your instructor.
Can I check my Turnitin score before I submit?
Only if your school allows it. Turnitin is licensed to institutions, and some schools set up practice or draft spaces, such as the Student Turnitin Portal at SUNY Empire State University. Turnitin advises students to submit only the final draft to a private repository, because earlier drafts can match the final paper.