Images of Text (No Exception)

Understanding WCAG2.0

In 1-4-5a, if it is impossible to obtain the visual effect that CSS wishes to obtain, it is said that it is acceptable to use the imaged characters, but in 1.4.9, it is said that font samples, logotypes, etc. " Understand that using imaged characters is forbidden except in cases where the "essential effect is essential". In other words, if you decorate texts within the range that CSS can do, it fulfills 1.4.9.

However, in the case where the imaged character is replaced with text information by JavaScript or the like, it can be handled as text, or when the foreground color, background color, size, etc. of the imaged character are changed to what user agent (Ie on the server side) if the function that the user can freely change is provided, it meets 1.4.9.

Principle Perceivable Information and user interface components must be presentable to users in ways they can perceive.
Guideline Distinguishable Make it easier for users to see and hear content including separating foreground from background.
Criterion Images of Text (No Exception)
(1.4.9 AAA)
Text images are used for pure decoration or when the specific representation of the text is essential for the information to be conveyed (logotype etc.).

URL of Techniques for WCAG 2.0