Opacity
Opacity says how solid an element and its children look. It can range from clear to solid.
Another example
A drag preview uses lower opacity. The moving copy looks different while the original place stays visible.
Main parts
- 01Content surface
- 02Distinct visual treatment
- 03Action and readability check
Use it when
Use it for transitions, overlays, previews, or back layers when contrast stays readable.
Do not use it when
Do not lower a whole box only to fade text. Every child and blended color will change.
Name used in code
opacity: 0…1 / alpha channel Before you ship
Check content order, shared design values, component consistency, contrast, zoom, and layout changes by screen size. Verify every theme, language, and state. If there is motion, offer an equal reduced-motion experience.
Outcome: Use or define Opacity to make the visual experience clear and easy to use. User context: A drag preview uses lower opacity. The moving copy looks different while the original place stays visible. Design concept to apply: Opacity. Why it fits: Use it for transitions, overlays, previews, or back layers when contrast stays readable. Do not use it when: Do not lower a whole box only to fade text. Every child and blended color will change. Design requirements: Set the content order, shared design values, and reusable components. Define how the layout changes by screen size and state. Keep useful design choices separate from decoration. Inclusion and resilience: Check contrast, zoom, languages, themes, and reduced motion when needed. Do not use color or effects as the only way to show meaning. Acceptance criteria: The design stays clear on phones and desktops, at zoom, in every theme, and in all supported languages. Interactive states stay clear and consistent. Evidence and limits (evidence boundary): A formal document may still be a draft, release candidate, or final version. Check its status and browser or platform support. Unknowns to confirm: Brand limits, amount of content, supported themes and languages, target devices, and design-system rules.
Check this request
Review the current use of Opacity. Definition: Opacity says how solid an element and its children look. It can range from clear to solid. Release checks: Check content order, shared design values, component consistency, contrast, zoom, and layout changes by screen size. Verify every theme, language, and state. If there is motion, offer an equal reduced-motion experience. Before changing code, report the evidence you found, gaps, severity, and the smallest safe fix.