Home Page Has Lots of Color Contrast Issues

I was testing out Lighthosue - https://developers.google.com/web/tools/lighthouse/

Got the report "Background and foreground colors have a sufficient contrast ratio."

Failing elements include:

<a href="/association/blog/the-process-for-evolving-community-governance">
<a href="/drupalorg/blog/whats-new-on-drupalorg-march-2017">
<a href="/news" class="button-link">
<a href="/node/2870762">
<a href="/node/2851257">
<a href="/node/2850979">
<a href="/case-studies">
<a href="https://www.drupal.org/planet" title="News from Drupal community members">
<a href="https://www.drupal.org/social-media" title="Drupal on social media">
<a href="https://www.drupal.org/security" title="Advisories from the security team">
<a href="https://jobs.drupal.org/" title="Drupal Jobs">
<a href="https://drupal.org/getting-involved" title="Learn how to contribute to the Drupal project">
<a href="https://drupal.org/drupal-services" title="People and organizations offering Drupal services">
<a href="https://drupal.org/training" title="People and organizations offering Drupal training">
<a href="https://drupal.org/hosting" title="Organizations offering Drupal hosting">
<a href="https://groups.drupal.org/groups" title="groups.drupal.org">
<a href="https://events.drupal.org" title="Upcoming and past DrupalCons">
<a href="https://drupal.org/dcoc" title="Drupal code of conduct">
<a href="https://www.drupal.org/docs/8">
<a href="https://www.drupal.org/docs/7">
<a href="https://www.drupal.org/documentation/develop">
<a href="https://api.drupal.org/" title="Drupal API reference">
<a href="https://drupal.org/project/drupal" title="Download the latest version of the Drupal software">
<a href="https://drupal.org/project/project_module" title="Download add-on features and functionality">
<a href="https://drupal.org/project/project_theme" title="Download pre-designed styles for Drupal">
<a href="https://drupal.org/project/project_distribution" title="Download a pre-packaged Drupal site">
<a href="https://drupal.org/about/accessibility" title="Our committment to accessibility">
<a href="https://drupal.org/association" title="About the Drupal Association">
<a href="https://drupal.org/drupalorg" title="About Drupal.org">
<a href="https://drupal.org/terms" title="Drupal.org terms of service">
<a href="https://drupal.org/privacy" title="Drupal.org privacy policy">
<a href="http://drupal.com/trademark" rel="nofollow">
<a href="http://buytaert.net" rel="nofollow">

Mostly it seems to be #bce3fa on #0678be that is the problem.