Last Updated: November 21, 2025
Chart Selection
| Scenario | Best chart |
|---|---|
Time series
|
Line chart with anomaly markers |
Part-to-whole
|
Stacked bar or treemap |
Comparison
|
Grouped bar or dot plot |
Color & Accessibility
Use palettes w/ high contrast
Satisfy WCAG 2.1
Avoid red/green combos
Consider colorblind users
Annotate key values
Call attention to insights
Storytelling
Start with insight, support with evidence, and finish with suggested action in each dashboard.
💡 Pro Tip:
Always label axes, avoid chart junk, and annotate outliers for clarity.