Color, Pattern, and Direct Labels
Encode series so color-blind users can read them.
Color Alone Lies to Some Eyes
About 1 in 12 men cannot reliably tell certain colors apart. If your chart says red means loss, those users see no difference at all. 🎨
The Two-Channel Rule
Encode every series with a second channel besides color: a pattern, a shape, or a direct label. Color becomes a bonus, not the only cue.
All lessons in this course
- Every Chart Needs a Text Alternative
- The Data Table Fallback
- Color, Pattern, and Direct Labels
- Keyboard-Navigable Interactive Charts