Opacity ignored for minimum contrast rule 1.4.3

[meisterz39]

Describe the bug

The ARC toolkit can be tricked into ignoring contrast issues so long as the contrast stems from opacity rather than a color value.

To Reproduce

1. Take any color with proper contrast, set it to be highly transparent
2. Run ARC against the page

body { background-color: #fff }
.color-1 { color: black; } // Passes
.color-2 { color: #ddd; } // Fails
.color-3 { color: black; opacity: 0.2; } // Passes

Expected behavior

Color contrast tests should account for opacity and correctly fail when a color is too transparent to produce adequate contrast

Screenshots

Version information

• Browser and version: Chrome Version 121.0.6167.140
• ARC Toolkit version: 5.6.0

[ferllings]

Fix already done on rules engine.
Should be fixed in next release

[poorgeek]

Closing as this was fixed in ARC Toolkit 5.7.0.