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Message type: E = Error
Message class: FPCHKACC - Usability messages for FP internal use only
Message number: 022
Message text: &1&2&3&4 Insufficient luminosity contrast ratio
[0022] Text and its background does not have the luminosity contrast
ratio of at least 5:1. The evaluated ratio is currently lower than 5:1.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Modify the background color or/and the text color so that an adequate
color contrast ratio (5:1 or higher) can be reached. Re-launch the SFP
layout check again to make sure that the new luminosity contrast ratio
is now ok.
Error message extract from SAP system. Copyright SAP SE.
FPCHKACC022
- &1&2&3&4 Insufficient luminosity contrast ratio ?The SAP error message FPCHKACC022, which indicates "Insufficient luminosity contrast ratio," typically relates to accessibility issues in SAP applications, particularly in the context of user interface design. This error is often encountered when the contrast between text and background colors does not meet the minimum standards for readability, which can be particularly important for users with visual impairments.
Cause:
The error is triggered when the luminosity contrast ratio between foreground (text) and background colors is below the recommended threshold. This is often a concern in web applications and user interfaces where accessibility standards (like WCAG - Web Content Accessibility Guidelines) are not met.
Solution:
To resolve this error, you can take the following steps:
Identify the Colors: Determine the foreground and background colors being used in the UI elements that are causing the error.
Calculate the Contrast Ratio: Use a contrast checker tool (many are available online) to calculate the luminosity contrast ratio between the identified colors. The recommended contrast ratio is:
- 4.5:1 for normal text
- 3:1 for large text (18pt or 14pt bold)
Adjust Colors: If the contrast ratio is insufficient, adjust the colors to ensure compliance. This may involve:
- Darkening the text color
- Lightening the background color
- Choosing different colors altogether that provide better contrast
Test Again: After making adjustments, recheck the contrast ratio to ensure it meets the required standards.
Consult Accessibility Guidelines: Familiarize yourself with accessibility guidelines (like WCAG) to ensure that your application adheres to best practices for accessibility.
Related Information:
By addressing the contrast issues highlighted by the FPCHKACC022 error, you can improve the accessibility and usability of your SAP applications.
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