Describe the problem

According to the recent kibana issue EUI input fields borders have contrast ratios below 3:1 and don't meet the WCAG AA contrast ratio requirement.

The same may apply to other components like EuiTextField, EuiSearchField, EuiSelect, and more.

To Reproduce

Go to https://eui.elastic.co/#/forms/form-controls#text-field and measure EuiTextField border contrast ratio.

Environment

• Operating System: MacOS 14.2
• Browser: Chrome 121
• Environment: production

Proposed solution

Increase affected components' border contrast ratios to 3:1 or above.

Screenshots or Trace Logs