[BUG]: Colour Accessibility

[RachBreeze]

Hello

Describe the bug
The UUI reports the colors used in the back office are inaccessible, this is something we've discused a few times, but hace had concern re branding. With the new back office it would be great if we could move to more accessible colours.

To Reproduce
This is reported in the UUI https://uui.umbraco.com/?path=/story/uui-button-group--mixed-looks-and-colors

Expected behavior
The colours to comply with WCAG

Additional context
Apologies if this is the wrong place to raise the issue.

[iOvergaard]

Hi @RachBreeze
Thanks for the report. I have taken the liberty to move it to the Umbraco.UI repository, since it looks like something that should be fixed there #h5yr