Color Contrast Minimum question

LVTF,
If an application can pass min contrast for icons on white background, but
the icons cannot meet the min ratio when switched to black background (Win
High Contrast black), is this a failure of the requirement?

Thank you for any information!
                                                                                      
                    Erich Manser                                                      
                    IBM                                                               
                    Accessibility                                                     
                    Design                                                            
                    Littleton,                                                        
                    MA / tel:                                                         
                    978-696-1810                                                      
                                                                                      
                                                                                      
                                                                                      
                                                                                      
                                                                                      
                                                                                      
                                                                                      



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