Testing focus indication

Which of the examples below has focus colour contrast that passes Success Criterion 2.4.13 Focus Appearance.

Example 1: Default focus rings

This is link 1

Example 2: No focus state

This is link 2

Example 3: Color for focus states

This is link 3

Example 4: Outline for focus states

This is link 4

Example 5: Color and box-shadow for focus states

This is link 5

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