Data storytelling guide
One chart, one message.
Highlight it. Gray out the rest.
Data storytelling is about leading your audience to the insight instead of making them search for it. The simplest way to do that: keep what matters in colour and push everything else into the background. Here is how.
Why gray out the rest?
When every bar, line and label carries the same weight, people scan the chart looking for the point. In a meeting, they often haven’t found it before you move on to the next slide.
Colour and contrast are noticed before anything is read — designers call them preattentive attributes. Keep one element in full colour, gray out the rest, and you decide where the eye lands first.
Gestalt psychology explains the rest. By figure–ground, the eye separates what stands out from the background: the highlight becomes the figure, the gray becomes the ground. By similarity, elements in the same colour are seen as one group — that is how one coloured series reads as a single line of argument. And by enclosure, a box around elements makes them belong together.
Graying out works better than deleting. The context stays visible, so your audience can see what the highlight is compared with, and trust your conclusion.
Highlight a chart in five steps
- 01
Write down your message
Before you touch the chart, finish the sentence “The point of this chart is…”. For example: “North grew faster than any other region.” If you can’t write it down, no highlight will help.
- 02
Paste the chart
Take a screenshot or export the chart from Excel, PowerPoint, Power BI, Tableau, R or Python, and paste it into gray out with Ctrl+V or ⌘+V. No need to rebuild it.
- 03
Select the evidence
Pick only what proves your message. Use Same colour for a whole series, since things in one colour are seen as one group. Use Click area for a single bar or slice, and Box for a label, value or annotation: a frame makes what is inside it belong together.
- 04
Gray out the rest
Everything else turns gray and fades. Use the Gray and Fade sliders to keep the context readable: your audience should still see what the highlight is compared with.
- 05
Let the title tell the story
Replace a neutral title like “Revenue by region” with the takeaway: “North grew 24%, twice as fast as any other region”. Then the highlight and the title say the same thing.
One chart, a different focus on every slide
A presentation is a story, and a story moves from one point to the next. Instead of showing a new chart on every slide, show the same chart several times and move the highlight. Your audience only has to understand the chart once; after that, all their attention goes to what you are saying.
Each slide gets one focus and a title that says it. Because the chart stays the same, people see exactly what changes — and they stay with you in the narrative instead of working out a new chart.
With gray out this takes seconds: open the chart, highlight the next part and copy it to the next slide. The original stays the same, so the slides line up perfectly.
Four highlighting patterns that work
One series against the rest
Highlight your product, team or region in a line or bar chart to show how it compares with all the others.
The outlier
One bar that is much higher or lower than expected. Highlight it, and use the title to explain why.
A moment in time
Box the months around a launch, price change or incident in a line chart, so the before and after are easy to see.
The number that matters
Box a value label or annotation, so the figure you mention out loud is the one people are looking at.
Tips for clear data stories
- Highlight one thing per slide. Two highlights means two messages — split them over two slides.
- Use one accent colour throughout a presentation, so it always means “look here”.
- Gray out, don’t delete: context makes your point credible.
- Don’t rely on colour alone. Let the title and labels say what the highlight shows, so the message also works for colour-blind readers and in print.
- Check it at presentation size. On a projector a subtle fade can disappear, so turn up Gray and Fade if needed.