- Platforms
- Foundations
-
Patterns
- Overview
- Accessing private data
- Charting data
- Collaboration and sharing
- Drag and drop
- Entering data
- Feedback
- File management
- Going full screen
- Launching
- Live-viewing apps
- Loading
- Managing accounts
- Managing notifications
- Modality
- Multitasking
- Offering help
- Onboarding
- Playing audio
- Playing haptics
- Playing video
- Printing
- Ratings and reviews
- Searching
- Settings
- Undo and redo
- Workouts
-
Components
- All components
- Content
- Layout and organization
- Menus and actions
- Navigation and search
- Presentation
- Selection and input
- Status
- System experiences
- Inputs
-
Technologies
- All technologies
- AirPlay
- Always On
- App Clips
- Apple Pay
- Augmented reality
- CareKit
- CarPlay
- Game Center
- HealthKit
- HomeKit
- iCloud
- In-app purchase
- Live Photos
- Mac Catalyst
- Machine learning
- Maps
- Messages for Business
- NFC
- Photo editing
- ResearchKit
- SharePlay
- ShazamKit
- Sign in with Apple
- Siri
- Tap to Pay on iPhone
- Wallet
Color
When configuring your Messages for Business experience, you can customize the colors of the conversation navigation bar and its back and Info buttons in iOS. These same colors appear in the message header in watchOS, brand name in watchOS, and recipient bubble in macOS.
Use sufficient color contrast ratios. Insufficient contrast makes content hard to see and can cause logos and buttons to blend in with the background. An online color contrast calculator can help you accurately analyze color contrast. Strive for a minimum contrast ratio of 4.5:1, although 7:1 is preferred because it meets more stringent accessibility standards. For guidance, see Color and effects.