Understanding Use of Color (SC 1.4.1)

[JAWS-test2]

Fixes #871

[Myndex]

Objection

The proposed paragraph is out of context and not a useful addition to this SC. The proposed paragraph appears to be discussing luminance contrast initially, but 1.4.1 is discussing how chroma (hue/sat) should not be relied on for coding or distinguishing elements.

The proposed paragraph does not add anything to the SC or discussion, it is confusing, and the "what ifs" presented don't provide a useful insight or motivation to insert this.

Best regards,

Andy

[JAWS-test]

Either there is the 3:1 exception at SC 1.4.1, in which case it should also be in the Understanding If it does not exist, all associated technologies should be removed.

[JAWS-test]

This PR can be closed if PR #1500 is successful

[alastc]

PR #1500 was merged, but thank you for the PR, it helps to add another voice to the issue.