Add WCAG AA compliant accent color variants and update default accent
to meet 4.5:1 contrast ratio requirements.
- Add --t-accent-text (darker for text on light backgrounds)
- Add --t-accent-button (darker for button backgrounds with white text)
- Change default accent from #3b82f6 to #2563eb (better contrast)
- Update presets and tests for new default
These changes ensure accent colors meet accessibility standards while
maintaining visual consistency with the brand palette.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Jamey Greenwood
364ac8fa0e