> Large Text: Large-scale text and images of large-scale text have a contrast ratio of at least 4.5:1;
> Incidental: Text or images of text that are part of an inactive user interface component, that are pure decoration, that are not visible to anyone, or that are part of a picture that contains significant other visual content, have no contrast requirement.
> Logotypes: Text that is part of a logo or brand name has no minimum contrast requirement.
> No Background: The audio does not contain background sounds.
> Turn Off: The background sounds can be turned off.
> 20 dB: The background sounds are at least 20 decibels lower than the foreground speech content, with the exception of occasional sounds that last for only one or two seconds.
Note: Per the definition of ""decibel,"" background sound that meets this requirement will be approximately four times quieter than the foreground speech content.
> Foreground and background colors can be selected by the user.
> Width is no more than 80 characters or glyphs (40 if CJK).
> Text is not justified (aligned to both the left and the right margins).
> Line spacing (leading) is at least space-and-a-half within paragraphs, and paragraph spacing is at least 1.5 times larger than the line spacing.
> Text can be resized without assistive technology up to 200 percent in a way that does not require the user to scroll horizontally to read a line of text on a full-screen window.