https://bugs.documentfoundation.org/show_bug.cgi?id=158989
--- Comment #9 from Heiko Tietze <[email protected]> --- (In reply to Luke Deller from bug 61993 comment 3) > Word 2010 appears to treat a background colour as "dark" if: > 130*red + 255*green * 51*blue < 105*255 My first patch used the w3 algorithm from https://www.w3.org/TR/AERT/#color-contrast return sal_uInt8((R * 299UL + G * 587UL + B * 114UL) / 1000); with IsDark() GetRelativeLuminance() <= 128; and IsBright() GetRelativeLuminance() >= 200; Don't remember why I rejected this solution, maybe because of this reply: (In reply to Myndex from comment #6) > Case 5 is an obsolete and incorrect WCAG 1.0 attempt at something... The alleged MSO function makes no difference to what we had in the past. But if I use a black cell background in Excel 365 the automatic font color is still black. Don't want to fix their problems, though. By the way, the default color Tango Sky Blue / 0x729fcf is calculated extra with the legacy calculation. -- You are receiving this mail because: You are the assignee for the bug.
