The accessibility of hard-coded H2 tags and font sizes depends on how they are implemented and used within a webpage. When considering accessibility, it is crucial to ensure that the HTML structure, CSS styles, and overall design adhere to best practices that enable users, including those with disabilities, to access and navigate the content effectively.
H2 Tags:
Use H2 tags appropriately within the content hierarchy. They should follow H1 tags and precede any H3 tags, creating a clear, logical structure that screen readers and other assistive technologies can interpret.
Avoid using H2 tags purely for stylistic purposes. They should be used to denote actual subheadings, ensuring meaningful content organization.
Ensure all heading levels are used semantically to provide context, which helps users navigate the content more effectively.
Font Size:
Ensure that font sizes are not set with fixed units (like pixels) but use relative ones (such as ems or percentages) to allow users to scale text according to their needs via browser settings.
Provide sufficient contrast between text and background colors; a high contrast ratio ensures that users with visual impairments can read the text without strain.
Consider implementing a feature to allow users to increase font sizes easily, further enhancing accessibility.
General Best Practices:
Test your webpages with various assistive technologies (e.g., screen readers) to ensure headings and font sizes are accessible to all users.
Utilize accessibility evaluation tools to identify and address potential issues related to headings and font sizes.
Follow Web Content Accessibility Guidelines (WCAG) to ensure your website meets the necessary compliance levels.

By incorporating these practices, you can significantly boost the accessibility of H2 tags and font sizes, making your website more inclusive and usable for a broader audience.