Test Environment:
OS Build: Windows 11 
Version: 24H2 (OS Build 26058.1400) 
Browser: Edge dev 
Browser Version 123.0.2400.1 (Official build) dev (64-bit)
URL: Overview - Docs ⋅ Storybook (mgt.dev)
Tool: Accessibility Insight for web

Repro Steps:

1. Open the above URL
2. The ‘Microsoft Graph Toolkit Playground' Overview page will get displayed.
3. Navigate to the ‘Mgt -agenda’ and activate it.
4. Navigate to the ‘Style’ and activate it.
5. Navigate to the ‘Custom CSS properties’ page control using tab key and activate it.
6. Navigate to " Tuesday, 27 February, 2024" text
7. Check luminosity ration with AI tool and observe the issue.

Actual Result:
The Luminosity Contrast Ratio of ‘Tuesday, 27 February, 2024’ Text is '4.3:1' which is less than 4.5:1.

Expected Result:
The Luminosity Contrast Ratio of ‘Tuesday, 27 February, 2024’ Text should be greater than or equal to 4.5:1

User Impact:
Low vision users would face difficulty in seeing the text if the color contrast ratio of the control is less than 4.5:1.

WCAG Reference:
https://www.w3.org/WAI/WCAG21/Understanding/contrast-minimum

“ Have feedback on bugs logged, please tag bug as “A11yRCA“ and add your feedback in the comment section. “

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