Key points at a glance
- Do not make a chart’s meaning depend only on colour.
- Test important pages in grayscale at actual output size.
- Compare costs using the specific printing configuration.
Decide where colour contributes information
Colour can help distinguish categories, map regions or several series in a chart. Decorative colour in a heading serves a different purpose from a colour that represents a data value. Decide what the colour contributes before choosing the print format.
Check the requirements, then inspect each important figure. What information would disappear without colour? Could direct labels or another representation preserve it? Start with readability and then compare the printing options available for the actual file.
Original example: two lines that become indistinguishable
Imagine a fictional chart with a red line for Group A and a green line for Group B. If both become similar shades of gray, a legend using those same colours provides little help. Readers can no longer reliably match the lines to the groups.
Add direct labels or distinguish line styles and markers. Group A could use a solid line with circles, while Group B uses a dashed line with squares. Check whether those differences survive at the intended print size.
W3C guidance for web content explains that colour should not be the only means of conveying information. That offers a useful design principle for printed charts too. Applying it does not by itself establish accessibility for the entire document.
Test grayscale output rather than guessing
Create a separate grayscale test view or print and keep the original colour file. Inspect fills, lines, legends and source notes. A gray that looks dark on screen may appear weak on paper, while thin lines also depend on size and the output device.
Maps and heatmaps may need more than simple colour removal. Consider labels, patterns or a different form of presentation. Explain the important finding in the text so that the figure is not the only route to understanding it.
Check colour in the final file and order
Look for less obvious colour in logos, hyperlinks, highlights and small diagrams. How colour pages are detected or priced depends on the particular service. Do not assume a fixed saving or an available mixed-colour printing function.
Compare the options actually offered for your document and copy count. After converting any content to grayscale, inspect the affected pages again. If digital and printed copies would differ, establish whether those differences are permitted for your submission.
Final submission context
Formal details can feel like a separate writing task, but they matter just as much for a printed submission. Anything missing, misplaced or inconsistently formatted in the document will also appear in the bound copy.
Use this guide together with your cover page, table of contents, page numbers, source notes and appendices. Prepare the final PDF for printing and binding only after the complete file has been checked.
Practical check before PDF export
- Do headings, chapter structure and page numbers match?
- Are sources, figures and tables included completely?
- Are required elements such as declarations, appendices or the cover page included where required?
- Did you open and check the final PDF after exporting it?
Checklist
- Colour use has a clear purpose.
- Charts have additional distinguishing features.
- Legends and axes remain readable in grayscale.
- Unintentional coloured elements have been checked.
- Order settings match the approved file.
Common mistakes
- Using red and green as the only distinction.
- Judging only the colour screen view.
- Assuming a saving without comparing the actual price.
Use colour where it improves understanding
Use the checked file to compare available printing options and the actual price for your order.
Configure printingRelated content
Explore related guidance on thesis structure, sources, formatting and final submission.
Frequently asked questions
Is black-and-white printing sufficient for a thesis?
It depends on the requirements and contents. It may be suitable when permitted and when every important distinction remains understandable without colour.
Can only selected pages be printed in colour?
Check the options offered for your order or ask support. Do not rely on mixed printing unless it is confirmed for the actual service.
Is a colour legend enough?
Not if lines become indistinguishable without colour. Add direct labels, line styles or markers and test them at the final size.