- Success Criterion 1.4.1
- Conformance level A
Wizard Progress Steps Distinguished Only by Color
1.4.1 — Use of Color
Scenario
Setting
A ticket marketplace's seat-selection map
What’s wrong
Wizard progress steps: completed vs — current vs — future differentiated by color only.
Example
Picture a ticket marketplace's seat-selection map: wizard progress steps: completed vs — current vs — future differentiated by color only.
Why it matters
People with color-vision deficiency, low vision, or constrained viewing conditions such as strong glare. Here, on a ticket marketplace's seat-selection map, the result is they miss information conveyed only by color.
How to test
View a wizard's progress steps in grayscale: if completed/current/future steps become indistinguishable, it fails.
How to fix
A second visual cue (text, underline, icon, or pattern) must convey the information alongside color.
Outcome
After the fix, the same visitor to a ticket marketplace's seat-selection map can now read the text clearly against its background.
Who is affected
People with color-vision deficiency, low vision, or constrained viewing conditions such as strong glare.
Learn more
- Understanding Understanding document (opens in a new tab)
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