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color-only-state
Color-only State
Selection, status, error, or chart meaning depends only on a hue change with no text, icon, shape, or position cue.
Anti-patternsBlocking
Intent
Keep meaning available to users with color-vision differences and in low-contrast viewing conditions.
Checks
- Add a non-color cue and verify relevant text and non-text contrast.
Warnings
- A palette that looks distinct to the author may collapse under color-vision differences.
Exceptions
- Color may reinforce a state when another programmatic and visible cue already conveys it.